Year Years
1800 32
1801 32
1802 32
1803 32
1804 32
1805 32
1806 32
1807 32
1808 32
1809 32
1810 32
1811 32
1812 32
1813 32
1814 32
1815 32
1816 32
1817 32
1818 32
1819 32
1820 32
1821 32
1822 32
1823 32
1824 32
1825 32
1826 32
1827 32
1828 32
1829 32
1830 32
1831 32
1832 32
1833 32
1834 32
1835 32
1836 32
1837 32
1838 32
1839 32
1840 32
1841 32
1842 32
1843 32
1844 32
1845 32
1846 32
1847 32
1848 32
1849 32
1850 32
1851 32
1852 32
1853 32
1854 32
1855 32
1856 32
1857 32
1858 32
1859 32
1860 32
1861 32
1862 32
1863 32
1864 32
1865 32
1866 32
1867 32
1868 32
1869 32
1870 32
1871 32.03
1872 32.05
1873 32.08
1874 32.11
1875 32.13
1876 32.16
1877 32.19
1878 32.21
1879 32.24
1880 32.27
1881 32.29
1882 32.32
1883 32.35
1884 32.37
1885 32.4
1886 32.43
1887 32.45
1888 32.48
1889 32.51
1890 32.53
1891 32.56
1892 32.59
1893 32.61
1894 32.64
1895 32.67
1896 32.69
1897 32.72
1898 32.74
1899 32.77
1900 32.8
1901 32.82
1902 32.85
1903 32.88
1904 32.9
1905 32.93
1906 32.96
1907 32.98
1908 33.01
1909 33.04
1910 33.06
1911 33.09
1912 33.12
1913 33.14
1914 33.17
1915 33.2
1916 33.22
1917 33.25
1918 29.41
1919 33.3
1920 33.33
1921 33.36
1922 33.38
1923 33.41
1924 33.44
1925 33.46
1926 33.49
1927 33.52
1928 33.54
1929 33.57
1930 33.6
1931 34.23
1932 34.86
1933 35.5
1934 36.13
1935 36.77
1936 37.4
1937 38.04
1938 38.67
1939 39.63
1940 40.58
1941 41.55
1942 42.5
1943 43.47
1944 44.42
1945 45.62
1946 46.81
1947 48.01
1948 49.21
1949 50.41
1950 51.61
1951 52.29
1952 53.58
1953 54.79
1954 55.91
1955 56.95
1956 57.9
1957 58.79
1958 59.59
1959 60.33
1960 61
1961 61.61
1962 62.19
1963 62.73
1964 63.26
1965 63.76
1966 64.24
1967 64.7
1968 65.14
1969 65.56
1970 65.96
1971 65.94
1972 65.44
1973 65.32
1974 65.63
1975 66.44
1976 66.94
1977 67.86
1978 68.06
1979 68.26
1980 69.01
1981 69.43
1982 69.97
1983 70.16
1984 70.58
1985 68
1986 70.6
1987 70.58
1988 70.8
1989 70.96
1990 71.38
1991 71.09
1992 71.13
1993 71.38
1994 71.62
1995 71.99
1996 72.18
1997 72.69
1998 73.04
1999 73.05
2000 73.25
2001 73.39
2002 73.61
2003 74.34
2004 74.56
2005 75
2006 75.19
2007 75.79
2008 76.03
2009 76.15
2010 76.44
2011 77.02
2012 77.32
2013 77.68
2014 77.88
2015 78.05
2016 78.24
2017 78.43
2018 78.62