Year Years
1800 32.2
1801 32.2
1802 32.2
1803 32.2
1804 32.2
1805 32.2
1806 32.2
1807 32.2
1808 32.2
1809 32.2
1810 32.2
1811 32.2
1812 32.2
1813 32.2
1814 32.2
1815 32.2
1816 32.2
1817 32.2
1818 32.2
1819 32.2
1820 32.2
1821 32.2
1822 32.2
1823 32.2
1824 32.2
1825 32.2
1826 32.2
1827 32.2
1828 32.2
1829 32.2
1830 32.2
1831 32.2
1832 32.2
1833 32.2
1834 32.2
1835 32.2
1836 32.2
1837 32.2
1838 32.2
1839 32.2
1840 32.2
1841 32.2
1842 32.2
1843 32.2
1844 32.2
1845 32.2
1846 32.2
1847 32.2
1848 32.2
1849 32.2
1850 32.2
1851 32.2
1852 32.2
1853 32.2
1854 32.2
1855 32.2
1856 32.2
1857 32.2
1858 32.2
1859 32.2
1860 32.2
1861 32.2
1862 32.2
1863 32.2
1864 32.2
1865 32.2
1866 32.2
1867 32.2
1868 32.2
1869 32.2
1870 32.2
1871 32.21
1872 32.22
1873 32.23
1874 32.24
1875 32.25
1876 32.26
1877 32.27
1878 32.28
1879 32.29
1880 32.3
1881 32.31
1882 32.32
1883 32.33
1884 32.33
1885 32.34
1886 32.35
1887 32.36
1888 32.37
1889 32.38
1890 32.39
1891 32.4
1892 32.41
1893 32.42
1894 32.43
1895 32.44
1896 32.45
1897 32.46
1898 32.47
1899 32.48
1900 32.49
1901 32.5
1902 32.51
1903 32.52
1904 32.53
1905 32.54
1906 32.55
1907 32.56
1908 32.57
1909 32.58
1910 32.59
1911 32.6
1912 32.6
1913 32.61
1914 32.62
1915 32.63
1916 32.64
1917 32.65
1918 29.56
1919 32.67
1920 32.68
1921 32.69
1922 32.7
1923 32.71
1924 32.72
1925 32.73
1926 32.74
1927 32.92
1928 33.1
1929 33.29
1930 33.47
1931 33.65
1932 33.84
1933 34.02
1934 34.2
1935 34.39
1936 34.57
1937 35.8
1938 37.04
1939 38.27
1940 39.51
1941 40.75
1942 42.36
1943 43.98
1944 45.61
1945 47.23
1946 48.85
1947 50.47
1948 52.09
1949 53.71
1950 55.34
1951 55.65
1952 56.25
1953 56.85
1954 57.45
1955 58.05
1956 58.66
1957 59.27
1958 59.89
1959 60.5
1960 61.12
1961 61.74
1962 62.35
1963 62.97
1964 63.57
1965 64.15
1966 64.74
1967 65.3
1968 65.86
1969 66.39
1970 66.89
1971 66.84
1972 66.87
1973 66.95
1974 67.5
1975 67.89
1976 68.32
1977 69.05
1978 69.42
1979 69.82
1980 69.96
1981 70.39
1982 70.56
1983 71.11
1984 71.47
1985 71.79
1986 72.35
1987 72.23
1988 72.45
1989 72.51
1990 72.69
1991 72.6
1992 72.57
1993 72.74
1994 72.67
1995 73.03
1996 73.45
1997 73.97
1998 74.09
1999 70.67
2000 74.3
2001 74.37
2002 74.31
2003 74.22
2004 74.87
2005 75.14
2006 75.01
2007 74.97
2008 74.89
2009 75
2010 75.41
2011 75.39
2012 75.27
2013 75.43
2014 75.48
2015 75.51
2016 75.54
2017 75.73
2018 75.91