Year Years
1800 26.5
1801 26.5
1802 26.5
1803 26.5
1804 26.5
1805 26.5
1806 26.5
1807 26.5
1808 26.5
1809 26.5
1810 26.5
1811 26.5
1812 26.5
1813 26.5
1814 26.5
1815 26.5
1816 26.5
1817 26.5
1818 26.5
1819 26.5
1820 26.5
1821 26.5
1822 26.5
1823 26.5
1824 26.5
1825 26.5
1826 26.5
1827 26.5
1828 26.5
1829 26.5
1830 26.5
1831 26.5
1832 26.5
1833 26.5
1834 26.5
1835 26.5
1836 26.5
1837 26.5
1838 26.5
1839 26.5
1840 26.5
1841 26.5
1842 26.5
1843 26.5
1844 26.5
1845 26.5
1846 26.5
1847 26.5
1848 26.5
1849 26.5
1850 26.5
1851 26.5
1852 26.5
1853 26.5
1854 26.5
1855 26.5
1856 26.5
1857 26.5
1858 26.5
1859 26.5
1860 26.5
1861 26.5
1862 26.5
1863 26.5
1864 26.5
1865 26.5
1866 26.5
1867 26.5
1868 26.5
1869 26.5
1870 26.5
1871 26.5
1872 26.51
1873 26.51
1874 26.51
1875 26.52
1876 26.52
1877 26.53
1878 26.53
1879 26.53
1880 26.54
1881 26.54
1882 26.54
1883 26.55
1884 26.55
1885 26.55
1886 26.56
1887 26.56
1888 26.57
1889 26.57
1890 26.57
1891 26.58
1892 26.58
1893 26.58
1894 26.59
1895 26.59
1896 26.59
1897 26.6
1898 26.6
1899 26.61
1900 26.61
1901 26.61
1902 26.62
1903 26.62
1904 26.62
1905 26.63
1906 26.63
1907 26.63
1908 26.64
1909 26.64
1910 26.64
1911 27.21
1912 27.79
1913 28.36
1914 28.92
1915 29.49
1916 30.07
1917 30.64
1918 27.09
1919 31.77
1920 32.35
1921 32.92
1922 33.49
1923 34.05
1924 34.63
1925 35.2
1926 35.77
1927 36.34
1928 36.92
1929 37.49
1930 38.06
1931 38.63
1932 39.21
1933 39.78
1934 40.35
1935 41.29
1936 42.23
1937 43.17
1938 44.11
1939 45.05
1940 45.99
1941 46.93
1942 47.87
1943 48.81
1944 49.75
1945 50.69
1946 51.63
1947 52.58
1948 53.52
1949 54.46
1950 55.41
1951 55.7
1952 56.26
1953 56.84
1954 57.4
1955 57.96
1956 58.51
1957 59.06
1958 59.61
1959 60.16
1960 60.72
1961 61.28
1962 61.86
1963 62.44
1964 63.04
1965 63.64
1966 64.23
1967 64.82
1968 65.39
1969 65.94
1970 66.47
1971 66.87
1972 67.23
1973 67.55
1974 67.89
1975 68.21
1976 68.4
1977 68.68
1978 68.87
1979 69.19
1980 69.3
1981 69.49
1982 69.72
1983 70.07
1984 70.57
1985 70.97
1986 71.3
1987 71.55
1988 71.75
1989 71.61
1990 71.65
1991 71.36
1992 71.32
1993 71.03
1994 70.77
1995 70.69
1996 70.61
1997 69.81
1998 69.56
1999 69.24
2000 68.87
2001 68.7
2002 69.15
2003 69.42
2004 69.74
2005 70.02
2006 70.35
2007 70.65
2008 70.87
2009 71.07
2010 71.38
2011 71.51
2012 71.62
2013 71.7
2014 71.8
2015 71.93
2016 72.03
2017 72.24
2018 72.45