Year Years
1800 30.15
1801 30.15
1802 30.15
1803 30.15
1804 30.15
1805 30.15
1806 30.15
1807 30.15
1808 30.15
1809 30.15
1810 30.15
1811 30.15
1812 30.15
1813 30.15
1814 30.15
1815 30.15
1816 30.15
1817 30.15
1818 30.15
1819 30.15
1820 30.15
1821 30.15
1822 30.15
1823 30.15
1824 30.15
1825 30.15
1826 30.15
1827 30.15
1828 30.15
1829 30.15
1830 30.15
1831 30.15
1832 30.15
1833 30.15
1834 30.15
1835 30.15
1836 30.15
1837 30.15
1838 30.15
1839 30.15
1840 30.15
1841 30.15
1842 30.15
1843 30.15
1844 30.15
1845 30.15
1846 30.15
1847 30.15
1848 30.15
1849 30.15
1850 30.15
1851 30.15
1852 30.15
1853 30.15
1854 30.15
1855 30.15
1856 30.15
1857 30.15
1858 30.15
1859 30.15
1860 30.15
1861 30.15
1862 30.15
1863 30.15
1864 30.15
1865 30.15
1866 30.15
1867 30.15
1868 30.15
1869 30.15
1870 30.15
1871 30.15
1872 30.15
1873 30.15
1874 30.15
1875 30.15
1876 30.15
1877 30.15
1878 30.15
1879 30.15
1880 30.15
1881 30.15
1882 30.15
1883 30.15
1884 30.15
1885 30.15
1886 30.15
1887 30.15
1888 30.15
1889 30.15
1890 30.15
1891 30.15
1892 30.15
1893 30.15
1894 30.15
1895 30.15
1896 30.15
1897 30.15
1898 30.15
1899 30.15
1900 30.15
1901 30.15
1902 30.15
1903 30.15
1904 30.15
1905 30.15
1906 30.15
1907 30.15
1908 30.15
1909 30.15
1910 30.15
1911 30.15
1912 30.15
1913 30.15
1914 30.15
1915 30.15
1916 30.15
1917 30.15
1918 19.56
1919 30.15
1920 30.15
1921 30.15
1922 30.98
1923 31.81
1924 32.64
1925 33.46
1926 34.29
1927 35.12
1928 35.95
1929 36.77
1930 37.6
1931 38.43
1932 39.26
1933 40.08
1934 40.91
1935 41.74
1936 42.57
1937 43.39
1938 44.22
1939 45.05
1940 45.88
1941 46.7
1942 47.53
1943 48.36
1944 49.19
1945 50.02
1946 50.84
1947 51.67
1948 52.5
1949 53.33
1950 54.15
1951 54.51
1952 55.23
1953 55.93
1954 56.61
1955 57.28
1956 57.93
1957 58.57
1958 59.2
1959 59.81
1960 60.41
1961 61
1962 61.58
1963 62.16
1964 62.72
1965 63.28
1966 63.84
1967 64.39
1968 64.93
1969 65.46
1970 65.99
1971 66.51
1972 67.02
1973 67.53
1974 68.02
1975 68.51
1976 69
1977 69.47
1978 69.93
1979 70.38
1980 70.82
1981 71.25
1982 71.68
1983 72.09
1984 72.5
1985 72.9
1986 73.29
1987 73.67
1988 74.05
1989 74.42
1990 74.79
1991 75.15
1992 75.51
1993 75.86
1994 76.2
1995 76.54
1996 76.88
1997 77.22
1998 77.55
1999 77.88
2000 78.19
2001 78.5
2002 78.78
2003 79.05
2004 79.31
2005 79.55
2006 79.78
2007 80.01
2008 80.24
2009 80.48
2010 80.71
2011 80.95
2012 81.18
2013 81.41
2014 81.64
2015 81.86
2016 82.08
2017 82.3
2018 82.51