Year Years 1800 25.3 1801 25.3 1802 25.3 1803 25.3 1804 25.3 1805 25.3 1806 25.3 1807 25.3 1808 25.3 1809 25.3 1810 25.3 1811 25.3 1812 25.3 1813 25.3 1814 25.3 1815 25.3 1816 25.3 1817 25.3 1818 25.3 1819 25.3 1820 25.3 1821 25.3 1822 25.3 1823 25.3 1824 25.3 1825 25.3 1826 25.3 1827 25.3 1828 25.3 1829 25.3 1830 25.3 1831 25.3 1832 25.3 1833 25.3 1834 25.3 1835 25.3 1836 25.3 1837 25.3 1838 25.3 1839 25.3 1840 25.3 1841 25.3 1842 25.3 1843 25.3 1844 25.3 1845 25.3 1846 25.3 1847 25.3 1848 25.3 1849 25.3 1850 25.3 1851 25.3 1852 25.3 1853 25.3 1854 25.3 1855 25.3 1856 25.3 1857 25.3 1858 25.3 1859 25.3 1860 25.3 1861 25.3 1862 25.3 1863 25.3 1864 25.3 1865 25.3 1866 25.3 1867 25.3 1868 25.3 1869 25.3 1870 25.3 1871 25.31 1872 25.32 1873 25.32 1874 25.33 1875 25.34 1876 25.35 1877 25.35 1878 25.36 1879 25.37 1880 25.38 1881 25.39 1882 25.39 1883 25.4 1884 25.41 1885 25.42 1886 25.43 1887 25.43 1888 25.44 1889 25.45 1890 25.46 1891 25.46 1892 25.47 1893 25.48 1894 25.49 1895 25.5 1896 25.5 1897 25.51 1898 25.52 1899 25.53 1900 25.53 1901 25.54 1902 25.55 1903 25.56 1904 25.57 1905 25.57 1906 25.58 1907 25.59 1908 25.6 1909 25.6 1910 25.61 1911 25.62 1912 25.63 1913 25.64 1914 25.64 1915 25.65 1916 25.66 1917 25.67 1918 9.93 1919 25.68 1920 25.69 1921 25.7 1922 25.71 1923 25.43 1924 25.15 1925 24.88 1926 24.6 1927 24.32 1928 24.58 1929 24.84 1930 25.11 1931 25.37 1932 25.63 1933 25.89 1934 26.16 1935 26.42 1936 26.68 1937 26.95 1938 27.26 1939 27.58 1940 27.89 1941 28.21 1942 28.52 1943 28.84 1944 29.15 1945 29.47 1946 31.56 1947 33.65 1948 35.75 1949 37.85 1950 39.95 1951 40.22 1952 40.75 1953 41.28 1954 41.82 1955 42.36 1956 42.91 1957 43.48 1958 44.05 1959 44.62 1960 45.21 1961 45.82 1962 46.44 1963 47.06 1964 47.68 1965 48.27 1966 48.82 1967 49.29 1968 49.72 1969 50.07 1970 50.34 1971 50.55 1972 50.78 1973 51.05 1974 51.19 1975 51.34 1976 51.49 1977 51.63 1978 51.37 1979 51.38 1980 49.42 1981 49.69 1982 49.89 1983 50.13 1984 50.07 1985 49.95 1986 49.68 1987 50.92 1988 50.63 1989 49.96 1990 49.2 1991 48.41 1992 47.86 1993 47.34 1994 47.02 1995 46.96 1996 47 1997 47.39 1998 47.7 1999 48.24 2000 48.71 2001 49.44 2002 50.17 2003 50.93 2004 51.76 2005 52.81 2006 53.71 2007 54.33 2008 55.11 2009 56.03 2010 56.81 2011 57.67 2012 58.63 2013 59.75 2014 60.75 2015 61.64 2016 62.26 2017 62.56 2018 62.86 2019 63.17 2020 63.49 2021 63.83 2022 64.19 2023 64.56 2024 64.93 2025 65.31 2026 65.7 2027 66.09 2028 66.48 2029 66.86 2030 67.24 2031 67.61 2032 67.97 2033 68.33 2034 68.68 2035 69.02 2036 69.35 2037 69.68 2038 70 2039 70.32 2040 70.63 2041 70.94 2042 71.25 2043 71.56 2044 71.87 2045 72.18 2046 72.48 2047 72.78 2048 73.07 2049 73.35 2050 73.62 2051 73.88 2052 74.13 2053 74.37 2054 74.6 2055 74.82 2056 75.03 2057 75.23 2058 75.42 2059 75.61 2060 75.8 2061 75.99 2062 76.18 2063 76.36 2064 76.54 2065 76.72 2066 76.9 2067 77.08 2068 77.26 2069 77.44 2070 77.61 2071 77.78 2072 77.95 2073 78.12 2074 78.29 2075 78.45 2076 78.61 2077 78.77 2078 78.92 2079 79.07 2080 79.22 2081 79.36 2082 79.5 2083 79.64 2084 79.78 2085 79.92 2086 80.06 2087 80.2 2088 80.34 2089 80.48 2090 80.61 2091 80.74 2092 80.87 2093 81 2094 81.13 2095 81.25 2096 81.37 2097 81.49 2098 81.61 2099 81.72 2100 81.83