Year	Years
1800	26.5
1801	26.5
1802	26.5
1803	26.5
1804	26.5
1805	26.5
1806	26.5
1807	26.5
1808	26.5
1809	26.5
1810	26.5
1811	26.5
1812	26.5
1813	26.5
1814	26.5
1815	26.5
1816	26.5
1817	26.5
1818	26.5
1819	26.5
1820	26.5
1821	26.5
1822	26.5
1823	26.5
1824	26.5
1825	26.5
1826	26.5
1827	26.5
1828	26.5
1829	26.5
1830	26.5
1831	26.5
1832	26.5
1833	26.5
1834	26.5
1835	26.5
1836	26.5
1837	26.5
1838	26.5
1839	26.5
1840	26.5
1841	26.5
1842	26.5
1843	26.5
1844	26.5
1845	26.5
1846	26.5
1847	26.5
1848	26.5
1849	26.5
1850	26.5
1851	26.5
1852	26.5
1853	26.5
1854	26.5
1855	26.5
1856	26.5
1857	26.5
1858	26.5
1859	26.5
1860	26.5
1861	26.5
1862	26.5
1863	26.5
1864	26.5
1865	26.5
1866	26.5
1867	26.5
1868	26.5
1869	26.5
1870	26.5
1871	26.5
1872	26.51
1873	26.51
1874	26.51
1875	26.52
1876	26.52
1877	26.53
1878	26.53
1879	26.53
1880	26.54
1881	26.54
1882	26.54
1883	26.55
1884	26.55
1885	26.55
1886	26.56
1887	26.56
1888	26.57
1889	26.57
1890	26.57
1891	26.58
1892	26.58
1893	26.58
1894	26.59
1895	26.59
1896	26.59
1897	26.6
1898	26.6
1899	26.61
1900	26.61
1901	26.61
1902	26.62
1903	26.62
1904	26.62
1905	26.63
1906	26.63
1907	26.63
1908	26.64
1909	26.64
1910	26.64
1911	27.21
1912	27.79
1913	28.36
1914	28.92
1915	29.49
1916	30.07
1917	30.64
1918	27.09
1919	31.77
1920	32.35
1921	32.92
1922	33.49
1923	34.05
1924	34.63
1925	35.2
1926	35.77
1927	36.34
1928	36.92
1929	37.49
1930	38.06
1931	38.63
1932	39.21
1933	39.78
1934	40.35
1935	41.29
1936	42.23
1937	43.17
1938	44.11
1939	45.05
1940	45.99
1941	46.93
1942	47.87
1943	48.81
1944	49.75
1945	50.69
1946	51.63
1947	52.58
1948	53.52
1949	54.46
1950	55.41
1951	55.7
1952	56.26
1953	56.84
1954	57.4
1955	57.96
1956	58.51
1957	59.06
1958	59.61
1959	60.16
1960	60.72
1961	61.28
1962	61.86
1963	62.44
1964	63.04
1965	63.64
1966	64.23
1967	64.82
1968	65.39
1969	65.94
1970	66.47
1971	66.87
1972	67.23
1973	67.55
1974	67.89
1975	68.21
1976	68.4
1977	68.68
1978	68.87
1979	69.19
1980	69.3
1981	69.49
1982	69.72
1983	70.07
1984	70.57
1985	70.97
1986	71.3
1987	71.55
1988	71.75
1989	71.61
1990	71.65
1991	71.36
1992	71.32
1993	71.03
1994	70.77
1995	70.69
1996	70.61
1997	69.81
1998	69.56
1999	69.24
2000	68.87
2001	68.7
2002	69.15
2003	69.42
2004	69.74
2005	70.02
2006	70.35
2007	70.65
2008	70.87
2009	71.07
2010	71.38
2011	71.51
2012	71.62
2013	71.7
2014	71.8
2015	71.93
2016	72.03
2017	72.24
2018	72.45