Year Years
1800 33
1801 33
1802 33
1803 33
1804 33
1805 33
1806 33
1807 33
1808 33
1809 33
1810 33
1811 33
1812 33
1813 33
1814 33
1815 33
1816 33
1817 33
1818 33
1819 33
1820 33
1821 33
1822 33
1823 33
1824 33
1825 33
1826 33
1827 33
1828 33
1829 33
1830 33
1831 33
1832 33
1833 33
1834 33
1835 33
1836 33
1837 33
1838 33
1839 33
1840 33
1841 33
1842 33
1843 33
1844 33
1845 33
1846 33
1847 33
1848 33
1849 33
1850 33
1851 33
1852 33
1853 33
1854 33
1855 33
1856 33
1857 33
1858 33
1859 33
1860 33
1861 33
1862 33
1863 33
1864 33
1865 33
1866 33
1867 33
1868 33
1869 33
1870 33
1871 33.03
1872 33.06
1873 33.1
1874 33.13
1875 33.16
1876 33.19
1877 33.22
1878 33.25
1879 33.29
1880 33.32
1881 33.35
1882 33.38
1883 33.41
1884 33.45
1885 33.48
1886 33.51
1887 33.54
1888 33.57
1889 33.61
1890 33.64
1891 33.67
1892 33.7
1893 33.73
1894 33.76
1895 33.8
1896 33.83
1897 33.86
1898 33.89
1899 33.92
1900 33.96
1901 33.99
1902 34.02
1903 34.05
1904 34.08
1905 34.11
1906 34.15
1907 34.18
1908 34.21
1909 34.24
1910 34.27
1911 34.31
1912 34.34
1913 34.37
1914 34.4
1915 34.43
1916 34.47
1917 34.5
1918 30.52
1919 34.56
1920 34.59
1921 34.62
1922 34.66
1923 34.69
1924 34.72
1925 34.75
1926 34.78
1927 34.82
1928 34.85
1929 34.88
1930 34.91
1931 34.94
1932 34.97
1933 35.01
1934 35.04
1935 35.07
1936 35.1
1937 35.13
1938 35.17
1939 35.2
1940 35.23
1941 35.99
1942 36.76
1943 37.52
1944 38.29
1945 39.06
1946 39.83
1947 40.6
1948 41.38
1949 42.15
1950 42.93
1951 43.12
1952 43.46
1953 43.81
1954 44.17
1955 44.53
1956 44.89
1957 45.26
1958 45.62
1959 45.99
1960 46.37
1961 46.74
1962 47.12
1963 47.51
1964 47.89
1965 48.29
1966 48.67
1967 49.04
1968 49.4
1969 49.78
1970 50.19
1971 50.81
1972 51.45
1973 52.09
1974 52.74
1975 53.39
1976 53.98
1977 54.52
1978 55.02
1979 55.72
1980 56.36
1981 56.83
1982 57.17
1983 57.41
1984 58.12
1985 58.67
1986 59.2
1987 59.63
1988 60.08
1989 60.69
1990 61.35
1991 61.89
1992 62.32
1993 62.93
1994 63.66
1995 64.3
1996 65.02
1997 65.62
1998 66.31
1999 67
2000 67.66
2001 68.32
2002 68.76
2003 69.26
2004 69.7
2005 70.08
2006 70.46
2007 70.72
2008 71.05
2009 71.35
2010 71.64
2011 71.91
2012 72.22
2013 72.49
2014 72.74
2015 73.01
2016 73.25
2017 73.62
2018 73.97