Year Years
1800 361
1801 361
1802 361
1803 361
1804 361
1805 361
1806 361
1807 361
1808 361
1809 361
1810 361
1811 361
1812 361
1813 361
1814 361
1815 361
1816 361
1817 361
1818 361
1819 361
1820 361
1821 361
1822 361
1823 361
1824 361
1825 361
1826 361
1827 361
1828 361
1829 361
1830 361
1831 361
1832 361
1833 361
1834 361
1835 361
1836 361
1837 361
1838 361
1839 361
1840 361
1841 361
1842 361
1843 361
1844 361
1845 361
1846 361
1847 361
1848 361
1849 361
1850 361
1851 361
1852 361
1853 361
1854 361
1855 361
1856 361
1857 361
1858 361
1859 361
1860 361
1861 361
1862 361
1863 361
1864 361
1865 361
1866 361
1867 361
1868 361
1869 361
1870 361
1871 361
1872 361
1873 361
1874 361
1875 361
1876 361
1877 361
1878 359.8
1879 358.6
1880 357.4
1881 356.3
1882 355.1
1883 354
1884 352.8
1885 350.5
1886 349.4
1887 348.2
1888 345.9
1889 344.8
1890 342.5
1891 341.4
1892 339.1
1893 336.9
1894 334.6
1895 333.4
1896 331.2
1897 328.9
1898 326.5
1899 324.1
1900 321.7
1901 319.2
1902 316.8
1903 314.2
1904 312.7
1905 310.1
1906 308.5
1907 305.8
1908 302.1
1909 299.3
1910 295.5
1911 291.8
1921 93.6
1922 117.2
1923 134.8
1924 145.6
1925 131.2
1926 105.2
1927 149.3
1928 138.4
1929 169.7
1930 147.4
1931 212.8
1932 192.2
1933 192.2
1934 171.6
1935 173.4
1936 175.3
1937 190.3
1938 147.4
1939 182.8
1940 145.6
1949 53.96
1950 44.11
1951 56.87
1952 62.78
1953 58.34
1954 63.2
1955 59.9
1956 59.7
1957 59.1
1958 58.3
1959 57.1
1960 55.8
1961 54.3
1962 52.7
1963 51.1
1964 49.4
1965 47.7
1966 46.2
1967 44.6
1968 42.7
1969 40.1
1970 37.5
1971 35.4
1972 34.1
1973 33.2
1974 32.4
1975 31.4
1976 30.1
1977 28.6
1978 26.8
1979 25.1
1980 23.4
1981 21.9
1982 20.6
1983 19.5
1984 18.4
1985 17.4
1986 16.4
1987 15.3
1988 14.3
1989 13.3
1990 12.5
1991 11.9
1992 11.4
1993 10.9
1994 10.5
1995 10.1
1996 9.7
1997 9.3
1998 8.8
1999 8.3
2000 7.8
2001 7.3
2002 6.8
2003 6.3
2004 5.9
2005 5.5
2006 5.2
2007 5
2008 4.9
2009 4.8
2010 4.7
2011 4.6
2012 4.5
2013 4.4