Year	Years
1800	33
1801	33
1802	33
1803	33
1804	33
1805	33
1806	33
1807	33
1808	33
1809	33
1810	33
1811	33
1812	33
1813	33
1814	33
1815	33
1816	33
1817	33
1818	33
1819	33
1820	33
1821	33
1822	33
1823	33
1824	33
1825	33
1826	33
1827	33
1828	33
1829	33
1830	33
1831	33
1832	33
1833	33
1834	33
1835	33
1836	33
1837	33
1838	33
1839	33
1840	33
1841	33
1842	33
1843	33
1844	33
1845	33
1846	33
1847	33
1848	33
1849	33
1850	33
1851	33
1852	33
1853	33
1854	33
1855	33
1856	33
1857	33
1858	33
1859	33
1860	33
1861	33
1862	33
1863	33
1864	33
1865	33
1866	33
1867	33
1868	33
1869	33
1870	33
1871	33.03
1872	33.06
1873	33.1
1874	33.13
1875	33.16
1876	33.19
1877	33.22
1878	33.25
1879	33.29
1880	33.32
1881	33.35
1882	33.38
1883	33.41
1884	33.45
1885	33.48
1886	33.51
1887	33.54
1888	33.57
1889	33.61
1890	33.64
1891	33.67
1892	33.7
1893	33.73
1894	33.76
1895	33.8
1896	33.83
1897	33.86
1898	33.89
1899	33.92
1900	33.96
1901	33.99
1902	34.02
1903	34.05
1904	34.08
1905	34.11
1906	34.15
1907	34.18
1908	34.21
1909	34.24
1910	34.27
1911	34.31
1912	34.34
1913	34.37
1914	34.4
1915	34.43
1916	34.47
1917	34.5
1918	30.52
1919	34.56
1920	34.59
1921	34.62
1922	34.66
1923	34.69
1924	34.72
1925	34.75
1926	34.78
1927	34.82
1928	34.85
1929	34.88
1930	34.91
1931	34.94
1932	34.97
1933	35.01
1934	35.04
1935	35.07
1936	35.1
1937	35.13
1938	35.17
1939	35.2
1940	35.23
1941	35.99
1942	36.76
1943	37.52
1944	38.29
1945	39.06
1946	39.83
1947	40.6
1948	41.38
1949	42.15
1950	42.93
1951	43.12
1952	43.46
1953	43.81
1954	44.17
1955	44.53
1956	44.89
1957	45.26
1958	45.62
1959	45.99
1960	46.37
1961	46.74
1962	47.12
1963	47.51
1964	47.89
1965	48.29
1966	48.67
1967	49.04
1968	49.4
1969	49.78
1970	50.19
1971	50.81
1972	51.45
1973	52.09
1974	52.74
1975	53.39
1976	53.98
1977	54.52
1978	55.02
1979	55.72
1980	56.36
1981	56.83
1982	57.17
1983	57.41
1984	58.12
1985	58.67
1986	59.2
1987	59.63
1988	60.08
1989	60.69
1990	61.35
1991	61.89
1992	62.32
1993	62.93
1994	63.66
1995	64.3
1996	65.02
1997	65.62
1998	66.31
1999	67
2000	67.66
2001	68.32
2002	68.76
2003	69.26
2004	69.7
2005	70.08
2006	70.46
2007	70.72
2008	71.05
2009	71.35
2010	71.64
2011	71.91
2012	72.22
2013	72.49
2014	72.74
2015	73.01
2016	73.25
2017	73.62
2018	73.97