Year Years
1800 29.5
1801 29.51
1802 29.52
1803 29.53
1804 29.54
1805 29.55
1806 29.56
1807 29.57
1808 29.58
1809 29.59
1810 29.6
1811 29.61
1812 29.62
1813 29.63
1814 29.64
1815 29.66
1816 29.67
1817 29.68
1818 29.69
1819 29.7
1820 29.71
1821 29.72
1822 29.73
1823 29.74
1824 29.75
1825 29.76
1826 29.77
1827 29.78
1828 29.79
1829 29.8
1830 29.81
1831 29.82
1832 29.83
1833 29.84
1834 29.85
1835 29.86
1836 29.87
1837 29.88
1838 29.89
1839 29.9
1840 29.91
1841 29.92
1842 29.93
1843 29.94
1844 29.96
1845 29.97
1846 29.98
1847 29.99
1848 30
1849 30.01
1850 30.02
1851 30.03
1852 30.04
1853 30.05
1854 30.06
1855 30.07
1856 30.08
1857 30.09
1858 30.1
1859 30.11
1860 30.12
1861 30.13
1862 30.14
1863 30.15
1864 30.16
1865 30.17
1866 30.18
1867 30.19
1868 30.2
1869 30.21
1870 30.22
1871 30.3
1872 30.38
1873 30.47
1874 30.55
1875 30.63
1876 30.71
1877 30.79
1878 30.87
1879 30.95
1880 31.03
1881 31.11
1882 31.19
1883 31.27
1884 31.35
1885 31.43
1886 31.51
1887 31.59
1888 31.67
1889 31.76
1890 31.84
1891 31.92
1892 32
1893 32.08
1894 32.16
1895 32.24
1896 32.32
1897 32.4
1898 32.48
1899 32.56
1900 32.65
1901 32.73
1902 32.82
1903 32.9
1904 32.98
1905 33.06
1906 33.15
1907 33.23
1908 33.31
1909 33.39
1910 33.47
1911 33.55
1912 33.64
1913 33.72
1914 33.8
1915 33.88
1916 33.96
1917 34.04
1918 13.2
1919 34.21
1920 34.29
1921 34.37
1922 34.46
1923 34.54
1924 34.62
1925 34.7
1926 34.79
1927 34.87
1928 34.95
1929 35.03
1930 35.12
1931 35.21
1932 35.29
1933 35.37
1934 35.46
1935 35.54
1936 35.62
1937 35.71
1938 35.79
1939 35.87
1940 35.96
1941 36.04
1942 36.12
1943 36.21
1944 36.29
1945 36.37
1946 36.81
1947 37.23
1948 37.67
1949 38.11
1950 38.55
1951 38.78
1952 39.19
1953 39.58
1954 39.97
1955 40.35
1956 40.73
1957 41.1
1958 41.47
1959 41.81
1960 42.15
1961 42.47
1962 42.77
1963 43.04
1964 43.32
1965 43.58
1966 43.85
1967 44.13
1968 44.42
1969 44.75
1970 45.13
1971 45.28
1972 45.44
1973 45.63
1974 45.88
1975 46.17
1976 46.56
1977 46.91
1978 47.34
1979 47.73
1980 48.14
1981 48.5
1982 48.85
1983 49.08
1984 49.54
1985 49.91
1986 50.39
1987 50.74
1988 51.03
1989 51.5
1990 52.01
1991 52.37
1992 52.55
1993 52.94
1994 52.98
1995 53.37
1996 53.85
1997 54.13
1998 54.23
1999 54.32
2000 54.67
2001 54.83
2002 55.11
2003 55.51
2004 55.82
2005 56.17
2006 56.41
2007 56.71
2008 57.16
2009 57.53
2010 57.99
2011 58.49
2012 58.93
2013 59.39
2014 59.16
2015 60.04
2016 60.69
2017 61.3
2018 61.9