Year	Years
1800	39
1801	39
1802	39
1803	39
1804	39.01
1805	39.01
1806	39.01
1807	39.01
1808	39.01
1809	39.01
1810	39.01
1811	39.02
1812	39.02
1813	39.02
1814	39.02
1815	39.02
1816	39.02
1817	39.03
1818	39.03
1819	39.03
1820	39.03
1821	39.03
1822	39.03
1823	39.03
1824	39.04
1825	39.04
1826	39.04
1827	39.04
1828	39.04
1829	39.04
1830	39.04
1831	39.05
1832	39.17
1833	39.3
1834	39.43
1835	39.55
1836	39.68
1837	39.81
1838	39.94
1839	40.06
1840	40.19
1841	40.32
1842	40.39
1843	40.47
1844	40.54
1845	40.61
1846	40.69
1847	40.76
1848	40.84
1849	40.91
1850	40.99
1851	41.06
1852	41.11
1853	41.17
1854	41.22
1855	41.27
1856	41.33
1857	41.38
1858	41.43
1859	41.49
1860	41.54
1861	41.6
1862	41.69
1863	41.79
1864	41.88
1865	41.98
1866	42.08
1867	42.17
1868	42.27
1869	42.36
1870	42.46
1871	42.56
1872	42.77
1873	42.99
1874	43.21
1875	43.43
1876	43.64
1877	43.86
1878	44.09
1879	44.31
1880	44.52
1881	44.74
1882	44.78
1883	44.83
1884	44.87
1885	44.92
1886	44.96
1887	45.01
1888	45.05
1889	45.1
1890	45.14
1891	45.18
1892	45.53
1893	45.89
1894	46.23
1895	46.58
1896	46.92
1897	47.27
1898	47.62
1899	47.96
1900	48.31
1901	48.65
1902	49.04
1903	49.43
1904	49.82
1905	50.21
1906	50.6
1907	50.99
1908	51.38
1909	51.77
1910	52.15
1911	52.54
1912	52.99
1913	53.44
1914	53.89
1915	54.34
1916	54.81
1917	55.26
1918	47.2
1919	56.16
1920	56.61
1921	57.06
1922	57.06
1923	57.06
1924	58.88
1925	59.36
1926	58.04
1927	58.73
1928	58.62
1929	58.02
1930	59
1931	60.41
1932	61.48
1933	62.42
1934	62.83
1935	62.55
1936	62.78
1937	61.41
1938	63.37
1939	63.8
1940	64.07
1941	63.82
1942	64.77
1943	64.68
1944	65.42
1945	66.4
1946	66.6
1947	66.85
1948	67.4
1949	67.73
1950	68.36
1951	68.63
1952	68.83
1953	69.21
1954	70.07
1955	70.13
1956	70.13
1957	70.05
1958	70.71
1959	70.75
1960	71.13
1961	71.36
1962	71.39
1963	71.4
1964	71.79
1965	71.89
1966	72.02
1967	72.23
1968	72.39
1969	72.55
1970	72.75
1971	72.94
1972	73.03
1973	73.24
1974	73.42
1975	73.68
1976	74.02
1977	74.32
1978	74.63
1979	74.96
1980	75.29
1981	75.62
1982	75.89
1983	76.14
1984	76.36
1985	76.5
1986	76.67
1987	76.83
1988	76.99
1989	77.2
1990	77.43
1991	77.61
1992	77.75
1993	77.8
1994	77.9
1995	78.05
1996	78.28
1997	78.53
1998	78.74
1999	78.97
2000	79.21
2001	79.43
2002	79.6
2003	79.79
2004	79.99
2005	80.18
2006	80.42
2007	80.6
2008	80.82
2009	81.07
2010	81.29
2011	81.48
2012	81.62
2013	81.71
2014	81.75
2015	81.74
2016	81.82
2017	81.99
2018	82.16