Year	Years
1800	25.6
1801	25.6
1802	25.6
1803	25.6
1804	25.6
1805	25.6
1806	25.6
1807	25.6
1808	25.6
1809	25.6
1810	25.6
1811	25.6
1812	25.6
1813	25.6
1814	25.6
1815	25.6
1816	25.6
1817	25.6
1818	25.6
1819	25.6
1820	25.6
1821	25.6
1822	25.6
1823	25.6
1824	25.6
1825	25.6
1826	25.6
1827	25.6
1828	25.6
1829	25.6
1830	25.6
1831	25.6
1832	25.6
1833	25.6
1834	25.6
1835	25.6
1836	25.6
1837	25.6
1838	25.6
1839	25.6
1840	25.6
1841	20
1842	25.6
1843	25.6
1844	25.6
1845	25.6
1846	25.6
1847	25.6
1848	25.6
1849	25.6
1850	25.6
1851	25.6
1852	25.6
1853	25.6
1854	6
1855	25.6
1856	25.6
1857	25.6
1858	25.6
1859	25.6
1860	25.6
1861	25.6
1862	25.6
1863	25.6
1864	25.6
1865	25.6
1866	25.6
1867	25.6
1868	25.6
1869	25.6
1870	25.6
1871	25.6
1872	25.6
1873	25.6
1874	25.6
1875	25.6
1876	25.6
1877	25.6
1878	25.6
1879	25.6
1880	25.6
1881	25.6
1882	25.6
1883	25.6
1884	25.6
1885	25.6
1886	25.6
1887	25.6
1888	25.6
1889	25.6
1890	25.6
1891	25.6
1892	25.6
1893	25.6
1894	25.6
1895	25.6
1896	25.6
1897	25.6
1898	25.6
1899	25.6
1900	25.6
1901	25.6
1902	25.6
1903	25.6
1904	25.6
1905	25.6
1906	25.6
1907	25.6
1908	25.6
1909	25.6
1910	25.6
1911	25.6
1912	25.6
1913	25.6
1914	25.6
1915	25.6
1916	25.6
1917	25.6
1918	1
1919	25.6
1920	25.6
1921	25.6
1922	25.6
1923	25.6
1924	25.6
1925	25.6
1926	26.4
1927	27.2
1928	28
1929	28.8
1930	29.6
1931	30.4
1932	31.2
1933	32
1934	32.8
1935	33.6
1936	34.4
1937	35.2
1938	36
1939	36.8
1940	37.6
1941	38.4
1942	39.2
1943	40
1944	40.8
1945	41.6
1946	42.4
1947	43.2
1948	44
1949	44.8
1950	45.6
1951	46.52
1952	48.28
1953	49.86
1954	51.27
1955	52.5
1956	53.55
1957	54.44
1958	55.18
1959	55.78
1960	56.28
1961	56.71
1962	57.09
1963	57.47
1964	57.85
1965	58.24
1966	58.65
1967	59.06
1968	59.45
1969	59.83
1970	60.18
1971	60.52
1972	60.84
1973	61.15
1974	61.47
1975	61.82
1976	62.23
1977	62.72
1978	63.28
1979	63.9
1980	64.56
1981	65.22
1982	65.84
1983	66.39
1984	66.87
1985	67.27
1986	67.59
1987	67.88
1988	68.15
1989	68.42
1990	68.7
1991	69.01
1992	69.33
1993	69.68
1994	70.05
1995	70.43
1996	70.82
1997	71.21
1998	71.59
1999	71.96
2000	72.31
2001	72.67
2002	73.03
2003	73.4
2004	73.77
2005	74.13
2006	74.48
2007	74.81
2008	75.11
2009	75.38
2010	75.62
2011	75.84
2012	76.05
2013	76.26
2014	76.47
2015	76.69
2016	76.88
2017	77.06
2018	77.24