Year Years
1800 31.2
1801 31.2
1802 31.2
1803 31.2
1804 31.2
1805 31.2
1806 31.2
1807 31.2
1808 31.2
1809 31.2
1810 31.2
1811 31.2
1812 31.2
1813 31.2
1814 31.2
1815 31.2
1816 31.2
1817 31.2
1818 31.2
1819 31.2
1820 31.2
1821 31.2
1822 31.2
1823 31.2
1824 31.2
1825 31.2
1826 31.2
1827 31.2
1828 31.2
1829 31.2
1830 31.2
1831 31.2
1832 31.2
1833 31.2
1834 31.2
1835 31.2
1836 31.2
1837 31.2
1838 31.2
1839 31.2
1840 31.2
1841 31.2
1842 31.2
1843 31.2
1844 31.2
1845 31.2
1846 31.2
1847 31.2
1848 31.2
1849 31.2
1850 31.2
1851 31.2
1852 31.2
1853 31.2
1854 31.2
1855 31.2
1856 31.2
1857 31.2
1858 31.2
1859 31.2
1860 31.2
1861 31.2
1862 31.2
1863 31.2
1864 31.2
1865 31.2
1866 31.2
1867 31.2
1868 31.2
1869 31.2
1870 31.2
1871 31.21
1872 31.23
1873 31.24
1874 31.25
1875 31.26
1876 31.28
1877 31.29
1878 31.3
1879 31.32
1880 31.33
1881 31.34
1882 31.35
1883 31.37
1884 31.38
1885 31.39
1886 31.4
1887 31.42
1888 31.43
1889 31.44
1890 31.46
1891 31.47
1892 31.48
1893 31.49
1894 31.51
1895 31.52
1896 31.53
1897 31.55
1898 31.56
1899 31.57
1900 31.58
1901 31.6
1902 31.61
1903 31.62
1904 31.63
1905 31.65
1906 31.66
1907 31.67
1908 31.69
1909 31.7
1910 31.71
1911 31.72
1912 31.74
1913 31.75
1914 31.76
1915 31.78
1916 31.79
1917 31.8
1918 26.38
1919 31.83
1920 31.84
1921 31.85
1922 31.87
1923 31.88
1924 31.89
1925 31.9
1926 31.92
1927 31.93
1928 31.94
1929 31.95
1930 31.97
1931 31.98
1932 31.99
1933 32.01
1934 32.02
1935 32.03
1936 32.04
1937 32.06
1938 32.07
1939 32.08
1940 32.1
1941 32.49
1942 32.87
1943 33.27
1944 33.66
1945 34.05
1946 34.44
1947 34.84
1948 35.22
1949 35.62
1950 36.01
1951 36.84
1952 38.47
1953 40.05
1954 41.57
1955 43.05
1956 44.47
1957 45.86
1958 47.2
1959 48.51
1960 49.79
1961 51.06
1962 52.31
1963 53.55
1964 54.76
1965 55.94
1966 57.05
1967 58.07
1968 59
1969 59.83
1970 60.59
1971 61.56
1972 61.66
1973 61.89
1974 60.58
1975 61.08
1976 63.15
1977 63.6
1978 64.08
1979 64.61
1980 61.22
1981 57.01
1982 57.44
1983 57.69
1984 60.1
1985 60.23
1986 60.42
1987 60.66
1988 49.79
1989 66.03
1990 66.16
1991 62.79
1992 65.63
1993 65.58
1994 65.47
1995 65.27
1996 65.25
1997 64.97
1998 65.72
1999 66
2000 65.99
2001 66.57
2002 66.38
2003 65.03
2004 65.26
2005 64.82
2006 63.89
2007 64.33
2008 66.18
2009 66.87
2010 67.24
2011 67.58
2012 67.86
2013 67.73
2014 67.1
2015 67.59
2016 67.68
2017 67.85
2018 68.02
2019 68.18
2020 68.34
2021 68.5
2022 68.66
2023 68.81
2024 68.96
2025 69.11
2026 69.26
2027 69.4
2028 69.54
2029 69.68
2030 69.81
2031 69.94
2032 70.07
2033 70.2
2034 70.33
2035 70.46
2036 70.59
2037 70.72
2038 70.85
2039 70.98
2040 71.11
2041 71.24
2042 71.37
2043 71.5
2044 71.63
2045 71.76
2046 71.89
2047 72.02
2048 72.15
2049 72.28
2050 72.41
2051 72.54
2052 72.67
2053 72.8
2054 72.93
2055 73.06
2056 73.19
2057 73.32
2058 73.45
2059 73.58
2060 73.71
2061 73.84
2062 73.97
2063 74.1
2064 74.23
2065 74.36
2066 74.49
2067 74.62
2068 74.75
2069 74.88
2070 75.01
2071 75.14
2072 75.27
2073 75.4
2074 75.53
2075 75.66
2076 75.79
2077 75.92
2078 76.05
2079 76.18
2080 76.31
2081 76.44
2082 76.57
2083 76.7
2084 76.84
2085 76.98
2086 77.12
2087 77.26
2088 77.4
2089 77.54
2090 77.68
2091 77.82
2092 77.96
2093 78.1
2094 78.24
2095 78.38
2096 78.52
2097 78.66
2098 78.79
2099 78.92
2100 79.05