Year	Measure
1800	634.4
1801	634.4
1802	634.4
1803	634.4
1804	634.4
1805	634.4
1806	634.4
1807	634.4
1808	634.4
1809	634.4
1810	634.4
1811	634.4
1812	634.4
1813	634.4
1814	634.4
1815	634.4
1816	634.4
1817	634.4
1818	634.4
1819	634.4
1820	634.4
1821	636.5
1822	638.5
1823	640.6
1824	642.7
1825	644.8
1826	646.9
1827	649
1828	651.1
1829	653.2
1830	655.3
1831	657.5
1832	659.6
1833	661.7
1834	663.9
1835	666
1836	668.2
1837	670.4
1838	672.6
1839	674.8
1840	676.9
1841	679.1
1842	681.4
1843	683.6
1844	685.8
1845	688
1846	690.3
1847	692.5
1848	694.8
1849	697
1850	699.3
1851	701.6
1852	703.8
1853	706.1
1854	708.4
1855	710.7
1856	713
1857	715.3
1858	717.7
1859	720
1860	722.3
1861	724.7
1862	727
1863	729.4
1864	731.8
1865	734.2
1866	736.5
1867	738.9
1868	741.3
1869	743.8
1870	746.2
1871	748.6
1872	751
1873	753.5
1874	755.9
1875	758.4
1876	760.8
1877	763.3
1878	765.8
1879	768.3
1880	770.8
1881	773.3
1882	775.8
1883	778.3
1884	780.9
1885	783.4
1886	785.9
1887	788.5
1888	791.1
1889	793.6
1890	796.2
1891	798.8
1892	801.4
1893	804
1894	806.6
1895	809.2
1896	811.9
1897	814.5
1898	817.2
1899	819.8
1900	822.5
1901	825.2
1902	827.8
1903	830.5
1904	833.2
1905	835.9
1906	838.7
1907	841.4
1908	844.1
1909	846.9
1910	849.6
1911	852.4
1912	855.1
1913	857.9
1914	861.9
1915	865.9
1916	869.9
1917	873.9
1918	878
1919	882
1920	886.1
1921	890.2
1922	894.3
1923	898.5
1924	902.6
1925	906.8
1926	911
1927	915.2
1928	919.5
1929	923.7
1930	928
1931	932.3
1932	936.6
1933	940.9
1934	945.3
1935	949.7
1936	954.1
1937	958.5
1938	962.9
1939	967.4
1940	971.8
1941	976.3
1942	980.9
1943	985.4
1944	990
1945	994.5
1946	999.1
1947	1004
1948	1008
1949	1013
1950	1018
1951	1030
1952	1048
1953	1092
1954	1096
1955	1097
1956	1125
1957	1103
1958	1142
1959	1151
1960	1167
1961	1152
1962	1146
1963	1142
1964	1137
1965	1136
1966	1120
1967	1124
1968	1136
1969	1126
1970	1120
1971	1040
1972	994.5
1973	1080
1974	1110
1975	1138
1976	1164
1977	1056
1978	1112
1979	1087
1980	1089
1981	1205
1982	1314
1983	1362
1984	1337
1985	1293
1986	1385
1987	1146
1988	1035
1989	1010
1990	953.5
1991	948.1
1992	872.7
1993	751.1
1994	672.6
1995	808.9
1996	830.4
1997	853.8
1998	878
1999	901.8
2000	892.2
2001	799.7
2002	976.7
2003	1055
2004	1081
2005	1175
2006	1193
2007	1322
2008	1323
2009	1552
2010	1632
2011	1695
2012	1885
2013	1907
2014	1923
2015	1963
2016	2016
2017	2072
2018	2134
2019	2206