Year Years
1800 37.92
1801 35.82
1802 38.37
1803 38.72
1804 40.52
1805 44.27
1806 43.76
1807 41.77
1808 37.26
1809 27.22
1810 36.48
1811 38.05
1812 43.46
1813 33.46
1814 41.74
1815 45.58
1816 46.33
1817 48.87
1818 46.75
1819 45.78
1820 46.96
1821 44.69
1822 46.13
1823 48.76
1824 47.64
1825 49.23
1826 47.63
1827 48.38
1828 46.22
1829 46.29
1830 45.75
1831 45.66
1832 47.62
1833 44.86
1834 41.95
1835 46.1
1836 46.46
1837 44.24
1838 42.93
1839 43.05
1840 45.62
1841 49.51
1842 48.37
1843 48.44
1844 49.71
1845 50.07
1846 48.05
1847 44.77
1848 45.02
1849 48.05
1850 49.53
1851 49.74
1852 48.46
1853 47.92
1854 51.65
1855 50.44
1856 50.37
1857 50.22
1858 51.59
1859 49.93
1860 50
1861 45.81
1862 44.7
1863 46.71
1864 48.78
1865 50.42
1866 49.92
1867 47.87
1868 47.16
1869 49.25
1870 50.86
1871 49.69
1872 50.02
1873 49.67
1874 47.77
1875 47.64
1876 46.83
1877 49.77
1878 51.79
1879 53.18
1880 51.91
1881 50.47
1882 47.4
1883 49.64
1884 50.8
1885 51.05
1886 51.71
1887 51.68
1888 50.37
1889 49.05
1890 48.59
1891 49.78
1892 49.67
1893 51.4
1894 50.61
1895 52.79
1896 53.83
1897 53.72
1898 53.95
1899 51.61
1900 53.46
1901 54.58
1902 56.48
1903 54.97
1904 56.08
1905 55.09
1906 56.9
1907 56.48
1908 56.3
1909 57.46
1910 57.97
1911 58.02
1912 57.73
1913 58.3
1914 57.8
1915 58.15
1916 57.23
1917 57.73
1918 50.28
1919 56.8
1920 58.87
1921 61.59
1922 60.77
1923 61.79
1924 62.1
1925 62.5
1926 63.24
1927 62.85
1928 63.38
1929 62.45
1930 64.08
1931 64.11
1932 64.58
1933 65.46
1934 66.19
1935 65.81
1936 65.81
1937 66.01
1938 67.06
1939 67.33
1940 65.86
1941 65.74
1942 65.65
1943 66.09
1944 65.77
1945 68.16
1946 69.48
1947 69.97
1948 71.09
1949 71.49
1950 71.56
1951 72.5
1952 72.63
1953 73.11
1954 73.19
1955 73.4
1956 73.45
1957 73.4
1958 73.39
1959 73.52
1960 73.54
1961 73.55
1962 73.43
1963 73.06
1964 73.56
1965 73.68
1966 73.96
1967 74.03
1968 73.91
1969 73.62
1970 74.03
1971 74.19
1972 74.38
1973 74.55
1974 74.74
1975 74.85
1976 75.04
1977 75.29
1978 75.45
1979 75.55
1980 75.75
1981 75.92
1982 76.04
1983 76.13
1984 76.2
1985 76.15
1986 76.22
1987 76.25
1988 76.44
1989 76.68
1990 76.85
1991 77.12
1992 77.27
1993 77.4
1994 77.69
1995 77.93
1996 78.18
1997 78.32
1998 78.4
1999 78.5
2000 78.71
2001 78.91
2002 79.11
2003 79.46
2004 79.82
2005 80.11
2006 80.35
2007 80.52
2008 80.69
2009 80.86
2010 81.04
2011 81.23
2012 81.48
2013 81.73
2014 82.01
2015 82.07
2016 82.09
2017 82.24
2018 82.39
2019 82.55
2020 82.71
2021 82.87
2022 83.03
2023 83.19
2024 83.35
2025 83.51
2026 83.66
2027 83.81
2028 83.96
2029 84.1
2030 84.24
2031 84.37
2032 84.5
2033 84.63
2034 84.76
2035 84.88
2036 85
2037 85.12
2038 85.24
2039 85.36
2040 85.48
2041 85.6
2042 85.72
2043 85.84
2044 85.96
2045 86.08
2046 86.2
2047 86.31
2048 86.42
2049 86.53
2050 86.64
2051 86.75
2052 86.86
2053 86.97
2054 87.08
2055 87.19
2056 87.3
2057 87.41
2058 87.52
2059 87.63
2060 87.74
2061 87.85
2062 87.96
2063 88.07
2064 88.18
2065 88.29
2066 88.4
2067 88.51
2068 88.62
2069 88.73
2070 88.84
2071 88.95
2072 89.06
2073 89.17
2074 89.28
2075 89.39
2076 89.5
2077 89.61
2078 89.72
2079 89.83
2080 89.94
2081 90.05
2082 90.16
2083 90.27
2084 90.38
2085 90.49
2086 90.6
2087 90.71
2088 90.82
2089 90.93
2090 91.04
2091 91.15
2092 91.26
2093 91.37
2094 91.48
2095 91.59
2096 91.7
2097 91.8
2098 91.9
2099 92
2100 92.1