NAME OF DATA SET: West African Monsoon Index (ASWI) ORIGINAL REFERENCE: Gallego, D., Ordóñez, P., Ribera, P., Peña-Ortiz, C. and García-Herrera, R. (2015), An instrumental index of the West African Monsoon back to the nineteenth century. Q.J.R. Meteorol. Soc.. doi:10.1002/qj.2601 PERIOD OF RECORD: 1750-2013 TEMPORAL RESOLUTION: monthly (June,July,August, September) REGION: 29ºW-17ºW, 7ºN-13ºN SOURCES: Daily data of wind direction based on direct marine observations derived from ICOADS v2.5. ASWI includes 2,762 records covering the period 1789-1834 from the English East India Company logbooks collection kept in the British Library and abstracted by Brohan et al. (2012) DESCRIPTION: The ASWI is an instrumental-based monthly index of the atmospheric circulation variability over the subtropical Atlantic (29ºW-17ºW, 7ºN-13ºN) defined as the proportion of days per month (in %) inside the 29ºW-17ºW, 7ºN-13ºN limits with prevailing wind blowing from the southwest quadrant (between 180º and 270º from the true north). For this index a day was considered a “day with prevailing wind blowing from the southwest quadrant” when at least 53% of the total number of observations available for any given day correspond to southwesterly winds DATA: Mo: Month Yr: Year nd: Number of days in the month with at least one wind direction observation nobs: Number of total wind direction observations ASWI: ASWI index in %. Months with less than 10 days with wind observations are labeled as missing (-99.9) Mo Yr nd nobs ASWI --------------------------- 6 1750 0 0 -99.9 7 1750 0 0 -99.9 8 1750 17 17 88.2 9 1750 0 0 -99.9 6 1751 3 3 -99.9 7 1751 0 0 -99.9 8 1751 0 0 -99.9 9 1751 0 0 -99.9 6 1752 0 0 -99.9 7 1752 0 0 -99.9 8 1752 3 3 -99.9 9 1752 3 3 -99.9 6 1753 5 5 -99.9 7 1753 0 0 -99.9 8 1753 0 0 -99.9 9 1753 5 5 -99.9 6 1754 5 5 -99.9 7 1754 0 0 -99.9 8 1754 0 0 -99.9 9 1754 6 6 -99.9 6 1755 5 5 -99.9 7 1755 0 0 -99.9 8 1755 0 0 -99.9 9 1755 4 4 -99.9 6 1756 3 3 -99.9 7 1756 0 0 -99.9 8 1756 0 0 -99.9 9 1756 5 5 -99.9 6 1757 0 0 -99.9 7 1757 0 0 -99.9 8 1757 2 2 -99.9 9 1757 6 6 -99.9 6 1758 0 0 -99.9 7 1758 1 1 -99.9 8 1758 10 10 80.0 9 1758 0 0 -99.9 6 1759 2 2 -99.9 7 1759 0 0 -99.9 8 1759 0 0 -99.9 9 1759 0 0 -99.9 6 1760 1 1 -99.9 7 1760 16 16 56.3 8 1760 6 6 -99.9 9 1760 0 0 -99.9 6 1761 7 7 -99.9 7 1761 8 8 -99.9 8 1761 0 0 -99.9 9 1761 0 0 -99.9 6 1762 0 0 -99.9 7 1762 10 10 30.0 8 1762 0 0 -99.9 9 1762 0 0 -99.9 6 1763 0 0 -99.9 7 1763 0 0 -99.9 8 1763 0 0 -99.9 9 1763 0 0 -99.9 6 1764 14 14 21.4 7 1764 1 1 -99.9 8 1764 5 5 -99.9 9 1764 4 4 -99.9 6 1765 4 4 -99.9 7 1765 0 0 -99.9 8 1765 0 0 -99.9 9 1765 5 5 -99.9 6 1766 2 2 -99.9 7 1766 0 0 -99.9 8 1766 4 4 -99.9 9 1766 0 0 -99.9 6 1767 6 6 -99.9 7 1767 0 0 -99.9 8 1767 0 0 -99.9 9 1767 0 0 -99.9 6 1768 0 0 -99.9 7 1768 19 22 42.1 8 1768 2 2 -99.9 9 1768 0 0 -99.9 6 1769 11 11 54.5 7 1769 15 15 46.7 8 1769 6 6 -99.9 9 1769 0 0 -99.9 6 1770 5 5 -99.9 7 1770 6 6 -99.9 8 1770 5 5 -99.9 9 1770 13 13 38.5 6 1771 13 13 38.5 7 1771 16 18 18.8 8 1771 1 1 -99.9 9 1771 12 12 41.7 6 1772 0 0 -99.9 7 1772 0 0 -99.9 8 1772 9 9 -99.9 9 1772 7 7 -99.9 6 1773 0 0 -99.9 7 1773 13 13 84.6 8 1773 7 7 -99.9 9 1773 15 15 40.0 6 1774 0 0 -99.9 7 1774 5 5 -99.9 8 1774 4 4 -99.9 9 1774 8 11 -99.9 6 1775 0 0 -99.9 7 1775 9 9 -99.9 8 1775 0 0 -99.9 9 1775 8 11 -99.9 6 1776 0 0 -99.9 7 1776 9 9 -99.9 8 1776 13 13 84.6 9 1776 13 17 38.5 6 1777 10 11 10.0 7 1777 20 20 55.0 8 1777 10 11 30.0 9 1777 6 6 -99.9 6 1778 23 106 0.0 7 1778 3 3 -99.9 8 1778 7 18 -99.9 9 1778 26 40 42.3 6 1779 7 7 -99.9 7 1779 24 45 37.5 8 1779 0 0 -99.9 9 1779 0 0 -99.9 6 1780 4 4 -99.9 7 1780 8 16 -99.9 8 1780 0 0 -99.9 9 1780 5 5 -99.9 6 1781 0 0 -99.9 7 1781 7 7 -99.9 8 1781 21 26 66.7 9 1781 0 0 -99.9 6 1782 8 8 -99.9 7 1782 0 0 -99.9 8 1782 0 0 -99.9 9 1782 0 0 -99.9 6 1783 0 0 -99.9 7 1783 0 0 -99.9 8 1783 0 0 -99.9 9 1783 0 0 -99.9 6 1784 10 10 0.0 7 1784 12 12 8.3 8 1784 0 0 -99.9 9 1784 2 2 -99.9 6 1785 0 0 -99.9 7 1785 0 0 -99.9 8 1785 0 0 -99.9 9 1785 13 18 38.5 6 1786 7 7 -99.9 7 1786 13 13 38.5 8 1786 8 8 -99.9 9 1786 14 14 21.4 6 1787 11 12 9.1 7 1787 23 24 39.1 8 1787 4 4 -99.9 9 1787 8 8 -99.9 6 1788 14 20 7.1 7 1788 12 15 8.3 8 1788 0 0 -99.9 9 1788 10 10 10.0 6 1789 9 9 -99.9 7 1789 9 10 -99.9 8 1789 6 10 -99.9 9 1789 5 5 -99.9 6 1790 6 6 -99.9 7 1790 0 0 -99.9 8 1790 0 0 -99.9 9 1790 9 12 -99.9 6 1791 11 21 27.3 7 1791 19 20 26.3 8 1791 2 2 -99.9 9 1791 0 0 -99.9 6 1792 6 11 -99.9 7 1792 5 5 -99.9 8 1792 0 0 -99.9 9 1792 9 12 -99.9 6 1793 9 27 -99.9 7 1793 17 48 5.9 8 1793 9 12 -99.9 9 1793 0 0 -99.9 6 1794 18 53 11.1 7 1794 12 71 8.3 8 1794 6 8 -99.9 9 1794 16 19 37.5 6 1795 5 20 -99.9 7 1795 25 47 8.0 8 1795 10 26 40.0 9 1795 10 29 40.0 6 1796 21 167 4.8 7 1796 11 50 54.5 8 1796 2 8 -99.9 9 1796 10 34 20.0 6 1797 7 10 -99.9 7 1797 23 65 26.1 8 1797 1 1 -99.9 9 1797 11 22 9.1 6 1798 17 46 23.5 7 1798 11 31 9.1 8 1798 8 17 -99.9 9 1798 6 6 -99.9 6 1799 16 53 6.3 7 1799 11 40 27.3 8 1799 4 4 -99.9 9 1799 0 0 -99.9 6 1800 10 19 10.0 7 1800 15 35 13.3 8 1800 10 56 60.0 9 1800 1 1 -99.9 6 1801 9 14 -99.9 7 1801 12 13 50.0 8 1801 0 0 -99.9 9 1801 14 50 28.6 6 1802 17 23 5.9 7 1802 18 30 16.7 8 1802 12 17 33.3 9 1802 10 10 50.0 6 1803 24 49 8.3 7 1803 14 21 0.0 8 1803 27 79 51.9 9 1803 9 11 -99.9 6 1804 11 17 0.0 7 1804 20 72 50.0 8 1804 15 39 73.3 9 1804 7 14 -99.9 6 1805 0 0 -99.9 7 1805 10 69 60.0 8 1805 4 27 -99.9 9 1805 0 0 -99.9 6 1806 10 40 0.0 7 1806 14 33 57.1 8 1806 5 5 -99.9 9 1806 5 8 -99.9 6 1807 3 3 -99.9 7 1807 14 46 14.3 8 1807 10 17 60.0 9 1807 4 5 -99.9 6 1808 9 16 -99.9 7 1808 18 37 22.2 8 1808 6 11 -99.9 9 1808 0 0 -99.9 6 1809 6 18 -99.9 7 1809 12 20 50.0 8 1809 12 40 41.7 9 1809 0 0 -99.9 6 1810 12 73 0.0 7 1810 13 20 53.8 8 1810 0 0 -99.9 9 1810 0 0 -99.9 6 1811 17 57 17.6 7 1811 15 30 46.7 8 1811 9 14 -99.9 9 1811 0 0 -99.9 6 1812 16 37 0.0 7 1812 15 23 20.0 8 1812 0 0 -99.9 9 1812 4 7 -99.9 6 1813 5 7 -99.9 7 1813 17 64 29.4 8 1813 0 0 -99.9 9 1813 5 9 -99.9 6 1814 14 52 14.3 7 1814 6 22 -99.9 8 1814 0 0 -99.9 9 1814 4 7 -99.9 6 1815 6 8 -99.9 7 1815 14 52 14.3 8 1815 3 3 -99.9 9 1815 0 0 -99.9 6 1816 23 31 26.1 7 1816 18 18 55.6 8 1816 7 7 -99.9 9 1816 14 30 21.4 6 1817 10 17 30.0 7 1817 12 18 16.7 8 1817 0 0 -99.9 9 1817 0 0 -99.9 6 1818 21 52 9.5 7 1818 6 6 -99.9 8 1818 13 13 53.8 9 1818 16 21 43.8 6 1819 13 13 7.7 7 1819 8 9 -99.9 8 1819 14 23 64.3 9 1819 6 6 -99.9 6 1820 0 0 -99.9 7 1820 6 6 -99.9 8 1820 16 47 56.3 9 1820 9 9 -99.9 6 1821 9 15 -99.9 7 1821 7 12 -99.9 8 1821 14 60 57.1 9 1821 9 13 -99.9 6 1822 3 3 -99.9 7 1822 19 47 36.8 8 1822 21 27 33.3 9 1822 9 17 -99.9 6 1823 13 58 7.7 7 1823 15 31 33.3 8 1823 6 6 -99.9 9 1823 0 0 -99.9 6 1824 5 6 -99.9 7 1824 14 15 64.3 8 1824 17 35 47.1 9 1824 13 19 15.4 6 1825 3 3 -99.9 7 1825 13 20 23.1 8 1825 5 5 -99.9 9 1825 6 6 -99.9 6 1826 12 16 0.0 7 1826 12 15 41.7 8 1826 20 46 10.0 9 1826 8 8 -99.9 6 1827 14 18 7.1 7 1827 13 23 53.8 8 1827 4 4 -99.9 9 1827 0 0 -99.9 6 1828 12 14 8.3 7 1828 22 68 54.5 8 1828 7 19 -99.9 9 1828 5 5 -99.9 6 1829 12 13 25.0 7 1829 22 32 18.2 8 1829 15 18 53.3 9 1829 5 5 -99.9 6 1830 20 30 0.0 7 1830 23 43 21.7 8 1830 22 44 59.1 9 1830 13 13 61.5 6 1831 13 17 15.4 7 1831 6 7 -99.9 8 1831 9 14 -99.9 9 1831 7 9 -99.9 6 1832 15 39 20.0 7 1832 19 25 47.4 8 1832 17 23 41.2 9 1832 18 37 27.8 6 1833 16 27 0.0 7 1833 17 29 23.5 8 1833 22 35 18.2 9 1833 12 17 41.7 6 1834 9 11 -99.9 7 1834 24 27 33.3 8 1834 22 28 40.9 9 1834 11 11 54.5 6 1835 8 8 -99.9 7 1835 18 28 22.2 8 1835 17 21 35.3 9 1835 14 21 42.9 6 1836 8 8 -99.9 7 1836 21 27 23.8 8 1836 25 47 32.0 9 1836 3 3 -99.9 6 1837 8 8 -99.9 7 1837 24 32 33.3 8 1837 8 8 -99.9 9 1837 7 7 -99.9 6 1838 17 19 11.8 7 1838 8 10 -99.9 8 1838 15 18 60.0 9 1838 20 31 45.0 6 1839 16 21 6.3 7 1839 29 52 17.2 8 1839 25 42 36.0 9 1839 11 19 63.6 6 1840 6 6 -99.9 7 1840 24 67 33.3 8 1840 16 26 56.3 9 1840 18 33 38.9 6 1841 13 19 15.4 7 1841 16 21 18.8 8 1841 22 35 36.4 9 1841 17 17 17.6 6 1842 12 21 0.0 7 1842 21 47 23.8 8 1842 14 16 42.9 9 1842 8 10 -99.9 6 1843 21 37 4.8 7 1843 29 69 27.6 8 1843 23 43 39.1 9 1843 25 35 24.0 6 1844 11 13 0.0 7 1844 30 84 36.7 8 1844 11 17 54.5 9 1844 22 39 22.7 6 1845 24 49 8.3 7 1845 30 74 26.7 8 1845 24 40 29.2 9 1845 22 64 27.3 6 1846 24 49 8.3 7 1846 15 19 26.7 8 1846 14 20 71.4 9 1846 5 9 -99.9 6 1847 28 88 7.1 7 1847 19 44 5.3 8 1847 26 40 57.7 9 1847 18 32 27.8 6 1848 22 35 9.1 7 1848 25 57 48.0 8 1848 12 14 41.7 9 1848 27 60 44.4 6 1849 28 47 0.0 7 1849 19 42 52.6 8 1849 22 35 63.6 9 1849 15 23 33.3 6 1850 28 56 17.9 7 1850 31 78 41.9 8 1850 23 39 65.2 9 1850 10 13 40.0 6 1851 18 24 11.1 7 1851 24 43 37.5 8 1851 16 18 56.3 9 1851 16 28 37.5 6 1852 23 59 34.8 7 1852 17 43 58.8 8 1852 15 19 73.3 9 1852 22 34 22.7 6 1853 12 17 0.0 7 1853 28 86 42.9 8 1853 23 60 60.9 9 1853 28 41 42.9 6 1854 20 132 0.0 7 1854 25 141 40.0 8 1854 20 125 75.0 9 1854 28 174 42.9 6 1855 27 352 0.0 7 1855 31 308 25.8 8 1855 27 235 74.1 9 1855 28 264 46.4 6 1856 28 174 3.6 7 1856 30 280 36.7 8 1856 30 298 50.0 9 1856 22 173 40.9 6 1857 27 304 0.0 7 1857 31 291 45.2 8 1857 27 215 51.9 9 1857 24 131 41.7 6 1858 30 246 6.7 7 1858 30 421 36.7 8 1858 25 268 68.0 9 1858 27 183 33.3 6 1859 19 117 0.0 7 1859 24 171 37.5 8 1859 13 51 46.2 9 1859 26 147 7.7 6 1860 24 184 8.3 7 1860 29 341 34.5 8 1860 25 213 56.0 9 1860 20 130 45.0 6 1861 30 156 10.0 7 1861 20 146 25.0 8 1861 27 135 66.7 9 1861 28 273 50.0 6 1862 24 250 0.0 7 1862 23 210 17.4 8 1862 31 285 38.7 9 1862 30 409 30.0 6 1863 19 177 5.3 7 1863 25 231 64.0 8 1863 26 198 53.8 9 1863 28 225 21.4 6 1864 30 388 3.3 7 1864 30 299 36.7 8 1864 21 189 52.4 9 1864 19 300 47.4 6 1865 13 76 7.7 7 1865 30 296 30.0 8 1865 17 221 76.5 9 1865 21 202 47.6 6 1866 18 167 11.1 7 1866 24 301 33.3 8 1866 19 126 63.2 9 1866 21 266 19.0 6 1867 23 235 8.7 7 1867 25 191 40.0 8 1867 25 174 72.0 9 1867 28 249 32.1 6 1868 26 243 3.8 7 1868 24 288 50.0 8 1868 25 166 64.0 9 1868 23 212 52.2 6 1869 30 313 3.3 7 1869 31 627 48.4 8 1869 22 164 77.3 9 1869 23 91 43.5 6 1870 21 182 0.0 7 1870 25 133 44.0 8 1870 30 249 66.7 9 1870 23 122 34.8 6 1871 26 222 0.0 7 1871 31 403 29.0 8 1871 22 184 81.8 9 1871 21 145 38.1 6 1872 25 215 12.0 7 1872 30 259 33.3 8 1872 21 164 52.4 9 1872 25 167 44.0 6 1873 26 150 11.5 7 1873 24 230 37.5 8 1873 19 107 52.6 9 1873 25 115 20.0 6 1874 20 126 5.0 7 1874 30 188 56.7 8 1874 23 167 56.5 9 1874 25 165 36.0 6 1875 24 195 0.0 7 1875 27 226 7.4 8 1875 29 214 48.3 9 1875 20 153 15.0 6 1876 14 77 21.4 7 1876 18 88 44.4 8 1876 19 99 47.4 9 1876 14 83 57.1 6 1877 17 127 17.6 7 1877 27 218 40.7 8 1877 15 83 40.0 9 1877 24 134 54.2 6 1878 24 181 12.5 7 1878 27 125 63.0 8 1878 20 170 50.0 9 1878 7 32 -99.9 6 1879 20 125 0.0 7 1879 26 243 50.0 8 1879 27 229 63.0 9 1879 24 182 29.2 6 1880 14 98 0.0 7 1880 19 91 31.6 8 1880 25 262 80.0 9 1880 28 178 46.4 6 1881 22 102 18.2 7 1881 23 137 30.4 8 1881 15 113 73.3 9 1881 18 201 38.9 6 1882 26 166 15.4 7 1882 25 260 36.0 8 1882 21 120 33.3 9 1882 13 78 61.5 6 1883 27 461 3.7 7 1883 31 403 41.9 8 1883 26 346 65.4 9 1883 28 200 35.7 6 1884 26 260 3.8 7 1884 21 388 28.6 8 1884 31 553 67.7 9 1884 29 564 34.5 6 1885 27 476 0.0 7 1885 28 709 39.3 8 1885 31 1147 45.2 9 1885 30 572 26.7 6 1886 28 558 0.0 7 1886 31 791 32.3 8 1886 30 635 53.3 9 1886 30 856 33.3 6 1887 30 717 3.3 7 1887 31 1288 32.3 8 1887 30 930 70.0 9 1887 30 838 36.7 6 1888 30 1081 0.0 7 1888 31 1473 25.8 8 1888 31 1330 45.2 9 1888 30 1317 23.3 6 1889 30 552 0.0 7 1889 31 817 12.9 8 1889 31 663 51.6 9 1889 30 617 13.3 6 1890 30 721 0.0 7 1890 31 1106 19.4 8 1890 31 1213 48.4 9 1890 30 555 40.0 6 1891 27 428 0.0 7 1891 31 733 12.9 8 1891 31 820 45.2 9 1891 30 648 46.7 6 1892 30 431 6.7 7 1892 31 696 38.7 8 1892 30 567 30.0 9 1892 29 445 17.2 6 1893 30 459 3.3 7 1893 31 721 16.1 8 1893 31 411 48.4 9 1893 30 488 36.7 6 1894 26 304 0.0 7 1894 26 491 26.9 8 1894 31 444 58.1 9 1894 29 753 17.2 6 1895 27 549 3.7 7 1895 31 806 32.3 8 1895 28 457 60.7 9 1895 30 971 13.3 6 1896 27 466 7.4 7 1896 31 566 25.8 8 1896 30 749 30.0 9 1896 30 563 23.3 6 1897 28 385 0.0 7 1897 30 451 20.0 8 1897 30 569 46.7 9 1897 30 499 20.0 6 1898 29 500 0.0 7 1898 31 742 22.6 8 1898 31 635 51.6 9 1898 29 581 17.2 6 1899 22 232 13.6 7 1899 21 224 14.3 8 1899 21 196 47.6 9 1899 20 129 30.0 6 1900 11 105 9.1 7 1900 19 102 52.6 8 1900 20 126 45.0 9 1900 17 196 11.8 6 1901 18 122 16.7 7 1901 29 417 31.0 8 1901 30 349 40.0 9 1901 27 302 29.6 6 1902 28 171 7.1 7 1902 31 420 25.8 8 1902 31 503 48.4 9 1902 30 545 16.7 6 1903 26 343 3.8 7 1903 30 444 50.0 8 1903 30 401 63.3 9 1903 30 462 26.7 6 1904 30 383 0.0 7 1904 30 466 50.0 8 1904 30 542 66.7 9 1904 30 739 20.0 6 1905 29 349 3.4 7 1905 31 545 38.7 8 1905 31 557 71.0 9 1905 30 716 20.0 6 1906 30 630 3.3 7 1906 31 558 38.7 8 1906 29 439 72.4 9 1906 29 571 44.8 6 1907 30 562 0.0 7 1907 31 711 3.2 8 1907 31 598 29.0 9 1907 30 599 26.7 6 1908 30 498 0.0 7 1908 31 664 19.4 8 1908 31 673 58.1 9 1908 30 682 13.3 6 1909 30 615 3.3 7 1909 31 722 19.4 8 1909 31 713 35.5 9 1909 30 739 26.7 6 1910 30 603 0.0 7 1910 31 934 19.4 8 1910 31 838 41.9 9 1910 30 1098 16.7 6 1911 30 819 0.0 7 1911 31 1119 16.1 8 1911 31 882 48.4 9 1911 30 853 10.0 6 1912 30 746 0.0 7 1912 31 1093 3.2 8 1912 31 803 45.2 9 1912 30 916 40.0 6 1913 30 881 0.0 7 1913 31 960 9.7 8 1913 31 861 16.1 9 1913 30 1015 16.7 6 1914 30 506 0.0 7 1914 30 368 33.3 8 1914 28 137 57.1 9 1914 24 59 25.0 6 1915 25 137 4.0 7 1915 25 178 24.0 8 1915 29 184 44.8 9 1915 26 140 23.1 6 1916 27 136 0.0 7 1916 20 92 45.0 8 1916 28 191 57.1 9 1916 24 117 50.0 6 1917 12 43 0.0 7 1917 13 70 23.1 8 1917 14 35 50.0 9 1917 22 56 54.5 6 1918 0 0 -99.9 7 1918 4 15 -99.9 8 1918 6 63 -99.9 9 1918 4 11 -99.9 6 1919 15 61 0.0 7 1919 21 89 28.6 8 1919 15 96 66.7 9 1919 24 127 29.2 6 1920 15 57 0.0 7 1920 20 121 15.0 8 1920 26 155 26.9 9 1920 25 124 20.0 6 1921 27 210 0.0 7 1921 31 280 3.2 8 1921 30 268 20.0 9 1921 30 276 23.3 6 1922 30 392 3.3 7 1922 30 378 23.3 8 1922 31 468 48.4 9 1922 30 412 30.0 6 1923 29 484 0.0 7 1923 31 506 22.6 8 1923 31 412 67.7 9 1923 29 459 27.6 6 1924 30 521 0.0 7 1924 31 481 16.1 8 1924 31 553 71.0 9 1924 30 475 20.0 6 1925 30 467 0.0 7 1925 31 484 19.4 8 1925 31 488 54.8 9 1925 30 507 33.3 6 1926 29 429 0.0 7 1926 31 476 22.6 8 1926 31 482 32.3 9 1926 30 424 26.7 6 1927 30 550 6.7 7 1927 31 571 29.0 8 1927 31 571 61.3 9 1927 30 552 23.3 6 1928 30 481 0.0 7 1928 31 586 16.1 8 1928 31 574 83.9 9 1928 30 545 23.3 6 1929 30 462 0.0 7 1929 31 529 29.0 8 1929 31 482 77.4 9 1929 30 547 36.7 6 1930 30 511 6.7 7 1930 30 402 26.7 8 1930 31 442 58.1 9 1930 30 463 26.7 6 1931 30 436 0.0 7 1931 31 364 29.0 8 1931 31 381 38.7 9 1931 30 361 33.3 6 1932 28 228 0.0 7 1932 31 258 32.3 8 1932 31 243 71.0 9 1932 29 268 37.9 6 1933 29 260 13.8 7 1933 28 242 42.9 8 1933 28 256 67.9 9 1933 27 245 29.6 6 1934 30 277 3.3 7 1934 31 343 6.5 8 1934 30 299 50.0 9 1934 30 330 33.3 6 1935 30 471 0.0 7 1935 31 454 9.7 8 1935 31 463 54.8 9 1935 30 525 36.7 6 1936 30 623 10.0 7 1936 31 640 35.5 8 1936 31 545 61.3 9 1936 30 605 40.0 6 1937 30 646 0.0 7 1937 31 584 25.8 8 1937 31 618 41.9 9 1937 30 659 50.0 6 1938 30 690 0.0 7 1938 31 721 32.3 8 1938 31 763 51.6 9 1938 30 717 20.0 6 1939 29 445 0.0 7 1939 31 416 9.7 8 1939 29 192 65.5 9 1939 21 91 28.6 6 1940 7 17 -99.9 7 1940 16 41 18.8 8 1940 14 25 64.3 9 1940 18 42 22.2 6 1941 26 197 0.0 7 1941 20 108 10.0 8 1941 16 96 31.3 9 1941 20 148 45.0 6 1942 18 90 5.6 7 1942 15 56 26.7 8 1942 12 80 58.3 9 1942 6 26 -99.9 6 1943 22 186 0.0 7 1943 9 44 -99.9 8 1943 9 35 -99.9 9 1943 9 34 -99.9 6 1944 1 4 -99.9 7 1944 7 31 -99.9 8 1944 0 0 -99.9 9 1944 5 19 -99.9 6 1945 2 6 -99.9 7 1945 0 0 -99.9 8 1945 0 0 -99.9 9 1945 0 0 -99.9 6 1946 20 66 5.0 7 1946 25 119 36.0 8 1946 24 94 66.7 9 1946 22 63 50.0 6 1947 23 107 0.0 7 1947 25 86 24.0 8 1947 26 109 42.3 9 1947 19 90 15.8 6 1948 27 134 7.4 7 1948 31 208 25.8 8 1948 26 147 57.7 9 1948 30 183 20.0 6 1949 29 166 0.0 7 1949 29 189 27.6 8 1949 30 196 33.3 9 1949 29 172 13.8 6 1950 30 230 3.3 7 1950 30 194 40.0 8 1950 30 199 66.7 9 1950 30 196 56.7 6 1951 29 192 3.4 7 1951 31 220 6.5 8 1951 31 228 51.6 9 1951 30 203 30.0 6 1952 30 205 3.3 7 1952 29 227 34.5 8 1952 30 230 56.7 9 1952 28 195 39.3 6 1953 30 250 0.0 7 1953 30 265 36.7 8 1953 31 280 41.9 9 1953 30 262 23.3 6 1954 30 289 10.0 7 1954 31 283 38.7 8 1954 31 279 77.4 9 1954 30 259 10.0 6 1955 29 196 3.4 7 1955 30 251 50.0 8 1955 30 253 53.3 9 1955 29 213 27.6 6 1956 29 230 0.0 7 1956 31 254 35.5 8 1956 31 268 25.8 9 1956 28 297 35.7 6 1957 30 238 0.0 7 1957 31 275 25.8 8 1957 31 272 54.8 9 1957 30 279 36.7 6 1958 30 275 13.3 7 1958 31 336 25.8 8 1958 31 309 80.6 9 1958 30 294 30.0 6 1959 30 337 0.0 7 1959 31 308 12.9 8 1959 30 313 53.3 9 1959 30 330 13.3 6 1960 30 366 6.7 7 1960 31 330 25.8 8 1960 31 291 54.8 9 1960 30 339 26.7 6 1961 30 342 0.0 7 1961 31 347 54.8 8 1961 31 410 54.8 9 1961 30 330 26.7 6 1962 30 421 0.0 7 1962 31 409 29.0 8 1962 31 342 67.7 9 1962 30 384 26.7 6 1963 30 413 0.0 7 1963 31 454 25.8 8 1963 31 547 41.9 9 1963 30 465 20.0 6 1964 30 561 0.0 7 1964 31 576 45.2 8 1964 31 629 80.6 9 1964 30 594 33.3 6 1965 30 649 0.0 7 1965 31 648 19.4 8 1965 31 652 61.3 9 1965 30 667 30.0 6 1966 30 545 0.0 7 1966 31 588 0.0 8 1966 31 642 51.6 9 1966 30 506 26.7 6 1967 30 1028 0.0 7 1967 31 1152 58.1 8 1967 31 1303 74.2 9 1967 30 1217 36.7 6 1968 30 969 0.0 7 1968 31 1100 16.1 8 1968 31 1089 22.6 9 1968 30 942 13.3 6 1969 30 1076 0.0 7 1969 31 1008 38.7 8 1969 31 1113 51.6 9 1969 30 896 40.0 6 1970 30 1277 0.0 7 1970 31 1296 25.8 8 1970 31 1063 41.9 9 1970 30 1361 10.0 6 1971 30 1044 0.0 7 1971 31 968 16.1 8 1971 31 980 61.3 9 1971 30 951 16.7 6 1972 30 1029 0.0 7 1972 31 1989 3.2 8 1972 31 2377 19.4 9 1972 30 877 6.7 6 1973 30 1070 0.0 7 1973 31 1160 16.1 8 1973 31 1211 32.3 9 1973 30 1388 13.3 6 1974 30 2713 0.0 7 1974 31 6055 9.7 8 1974 31 6575 58.1 9 1974 30 5811 30.0 6 1975 30 1163 0.0 7 1975 31 950 22.6 8 1975 31 1039 51.6 9 1975 30 941 33.3 6 1976 30 722 0.0 7 1976 31 747 32.3 8 1976 31 776 54.8 9 1976 30 729 20.0 6 1977 30 774 0.0 7 1977 31 746 9.7 8 1977 31 748 22.6 9 1977 30 742 13.3 6 1978 30 1171 3.3 7 1978 31 1296 19.4 8 1978 31 1264 41.9 9 1978 30 1141 33.3 6 1979 30 1437 0.0 7 1979 31 1208 12.9 8 1979 31 1135 12.9 9 1979 30 846 10.0 6 1980 30 1024 0.0 7 1980 31 991 19.4 8 1980 31 911 38.7 9 1980 30 965 23.3 6 1981 30 866 0.0 7 1981 31 1013 22.6 8 1981 31 855 29.0 9 1981 30 843 16.7 6 1982 30 1051 0.0 7 1982 31 983 16.1 8 1982 31 837 45.2 9 1982 30 731 3.3 6 1983 30 835 6.7 7 1983 31 849 9.7 8 1983 31 830 38.7 9 1983 30 698 10.0 6 1984 30 771 0.0 7 1984 31 702 22.6 8 1984 31 739 6.5 9 1984 30 692 13.3 6 1985 30 1023 0.0 7 1985 31 848 22.6 8 1985 31 789 29.0 9 1985 30 873 26.7 6 1986 30 800 0.0 7 1986 31 853 12.9 8 1986 31 975 19.4 9 1986 30 979 16.7 6 1987 30 706 0.0 7 1987 31 931 9.7 8 1987 31 793 29.0 9 1987 30 731 33.3 6 1988 30 755 0.0 7 1988 31 865 38.7 8 1988 31 675 64.5 9 1988 30 623 33.3 6 1989 30 540 0.0 7 1989 31 721 9.7 8 1989 31 576 54.8 9 1989 30 657 6.7 6 1990 30 527 0.0 7 1990 31 624 16.1 8 1990 31 596 32.3 9 1990 30 515 13.3 6 1991 30 499 0.0 7 1991 31 636 9.7 8 1991 31 513 25.8 9 1991 30 565 16.7 6 1992 30 506 3.3 7 1992 31 515 19.4 8 1992 31 430 32.3 9 1992 30 368 20.0 6 1993 30 410 0.0 7 1993 31 485 16.1 8 1993 31 554 25.8 9 1993 30 464 10.0 6 1994 30 412 0.0 7 1994 31 395 25.8 8 1994 31 395 35.5 9 1994 30 350 13.3 6 1995 30 390 0.0 7 1995 31 388 12.9 8 1995 31 388 48.4 9 1995 30 354 16.7 6 1996 30 430 3.3 7 1996 31 404 25.8 8 1996 31 429 32.3 9 1996 30 413 10.0 6 1997 30 371 6.7 7 1997 31 371 32.3 8 1997 31 386 41.9 9 1997 30 371 13.3 6 1998 30 372 0.0 7 1998 31 379 19.4 8 1998 31 416 41.9 9 1998 30 570 40.0 6 1999 30 398 0.0 7 1999 31 454 22.6 8 1999 30 373 63.3 9 1999 29 366 20.7 6 2000 30 368 0.0 7 2000 31 382 16.1 8 2000 31 423 41.9 9 2000 29 354 34.5 6 2001 30 426 3.3 7 2001 30 373 30.0 8 2001 31 420 61.3 9 2001 30 340 16.7 6 2002 30 268 0.0 7 2002 30 323 0.0 8 2002 31 330 29.0 9 2002 29 279 20.7 6 2003 29 289 13.8 7 2003 31 354 41.9 8 2003 31 314 45.2 9 2003 30 298 43.3 6 2004 30 301 3.3 7 2004 31 292 35.5 8 2004 31 317 38.7 9 2004 28 285 3.6 6 2005 30 428 3.3 7 2005 31 348 22.6 8 2005 29 324 34.5 9 2005 30 281 20.0 6 2006 30 447 0.0 7 2006 31 546 6.5 8 2006 31 531 38.7 9 2006 30 489 20.0 6 2007 30 423 0.0 7 2007 31 458 12.9 8 2007 31 474 48.4 9 2007 30 406 26.7 6 2008 30 417 0.0 7 2008 31 234 25.8 8 2008 30 157 53.3 9 2008 30 220 20.0 6 2009 30 576 0.0 7 2009 31 527 32.3 8 2009 31 547 45.2 9 2009 29 506 24.1 6 2010 30 580 0.0 7 2010 31 548 6.5 8 2010 31 640 54.8 9 2010 30 523 46.7 6 2011 29 411 3.4 7 2011 30 245 10.0 8 2011 31 631 41.9 9 2011 30 737 3.3 6 2012 30 229 3.3 7 2012 30 223 20.0 8 2012 31 262 45.2 9 2012 30 181 26.7 6 2013 30 777 0.0 7 2013 31 546 6.5 8 2013 31 562 38.7 9 2013 30 588 30.0