Year	Measure
1820	591.6
1821	593.1
1822	594.6
1823	596.1
1824	597.6
1825	599.2
1826	600.7
1827	602.2
1828	603.7
1829	605.3
1830	606.8
1831	608.3
1832	609.9
1833	611.4
1834	613
1835	614.5
1836	616.1
1837	617.7
1838	619.2
1839	620.8
1840	622.4
1841	623.9
1842	625.5
1843	627.1
1844	628.7
1845	630.3
1846	631.9
1847	633.5
1848	635.1
1849	636.7
1850	638.3
1851	640
1852	641.6
1853	643.2
1854	644.8
1855	646.5
1856	648.1
1857	649.8
1858	651.4
1859	653.1
1860	654.7
1861	656.4
1862	658
1863	659.7
1864	661.4
1865	663.1
1866	664.7
1867	666.4
1868	668.1
1869	669.8
1870	671.5
1871	673.2
1872	674.9
1873	676.6
1874	678.4
1875	680.1
1876	681.8
1877	683.5
1878	685.3
1879	687
1880	688.7
1881	690.5
1882	692.2
1883	694
1884	695.8
1885	697.5
1886	699.3
1887	701.1
1888	702.8
1889	704.6
1890	706.4
1891	708.2
1892	710
1893	711.8
1894	713.6
1895	715.4
1896	717.2
1897	719.1
1898	720.9
1899	722.7
1900	724.5
1901	726.4
1902	728.2
1903	730.1
1904	731.9
1905	733.8
1906	735.6
1907	737.5
1908	739.4
1909	741.2
1910	743.1
1911	745
1912	746.9
1913	748.8
1914	750.7
1915	752.6
1916	754.5
1917	756.4
1918	758.3
1919	760.3
1920	762.2
1921	764.1
1922	766.1
1923	768
1924	770
1925	771.9
1926	773.9
1927	775.8
1928	777.8
1929	779.8
1930	781.7
1931	783.7
1932	785.7
1933	787.7
1934	789.7
1935	791.7
1936	793.7
1937	795.7
1938	797.8
1939	799.8
1940	801.8
1941	803.8
1942	805.9
1943	807.9
1944	810
1945	812
1946	814.1
1947	816.2
1948	818.2
1949	820.3
1950	822.4
1951	904.3
1952	900.9
1953	847.7
1954	893.9
1955	892.6
1956	880.3
1957	878.1
1958	862.2
1959	880.2
1960	891.1
1961	856.2
1962	907.6
1963	936.9
1964	959.4
1965	964.8
1966	1056
1967	1066
1968	1088
1969	1075
1970	1103
1971	1115
1972	1151
1973	1150
1974	1141
1975	1165
1976	1212
1977	1210
1978	1208
1979	1188
1980	1163
1981	1117
1982	1099
1983	1062
1984	1057
1985	1024
1986	1027
1987	1046
1988	1057
1989	1062
1990	1070
1991	1062
1992	1038
1993	1016
1994	994.2
1995	998.1
1996	1023
1997	992
1998	1003
1999	1013
2000	1039
2001	1078
2002	1130
2003	1169
2004	1222
2005	1280
2006	1329
2007	1384
2008	1445
2009	1487
2010	1545
2011	1596
2012	1667
2013	1731
2014	1801
2015	1871
2016	1946
2017	2021
2018	2097
2019	2175