Year	Measure
1800	732.6
1801	733.2
1802	733.9
1803	734.5
1804	735.1
1805	735.8
1806	736.4
1807	737.1
1808	737.7
1809	738.3
1810	739
1811	739.6
1812	740.3
1813	740.9
1814	741.6
1815	742.2
1816	742.8
1817	743.5
1818	744.1
1819	744.8
1820	745.4
1821	746.1
1822	746.7
1823	747.4
1824	748
1825	748.7
1826	749.3
1827	750
1828	750.6
1829	751.3
1830	751.9
1831	752.6
1832	753.2
1833	753.9
1834	754.5
1835	755.2
1836	755.9
1837	756.5
1838	757.2
1839	757.8
1840	758.5
1841	759.1
1842	759.8
1843	760.5
1844	761.1
1845	761.8
1846	762.4
1847	763.1
1848	763.8
1849	764.4
1850	765.1
1851	765.8
1852	766.4
1853	767.1
1854	767.8
1855	768.4
1856	769.1
1857	769.8
1858	770.4
1859	771.1
1860	771.8
1861	772.4
1862	773.1
1863	773.8
1864	774.4
1865	775.1
1866	775.8
1867	776.5
1868	777.1
1869	777.8
1870	778.5
1871	779.2
1872	779.8
1873	780.5
1874	781.2
1875	781.9
1876	782.6
1877	783.2
1878	783.9
1879	784.6
1880	785.3
1881	786
1882	786.6
1883	787.3
1884	788
1885	788.7
1886	789.4
1887	790.1
1888	790.7
1889	791.4
1890	792.1
1891	792.8
1892	793.5
1893	794.2
1894	794.9
1895	795.6
1896	796.3
1897	796.9
1898	797.6
1899	798.3
1900	799
1901	799.7
1902	800.4
1903	801.1
1904	801.8
1905	802.5
1906	803.2
1907	803.9
1908	804.6
1909	805.3
1910	806
1911	806.7
1912	807.4
1913	808.1
1914	808.8
1915	809.5
1916	810.2
1917	810.9
1918	811.6
1919	812.3
1920	813
1921	813.7
1922	814.4
1923	815.1
1924	815.8
1925	816.6
1926	817.3
1927	818
1928	818.7
1929	819.4
1930	820.1
1931	820.8
1932	821.5
1933	822.2
1934	823
1935	823.7
1936	824.4
1937	825.1
1938	825.8
1939	826.5
1940	827.3
1941	828
1942	828.7
1943	829.4
1944	830.1
1945	830.9
1946	831.6
1947	832.3
1948	833
1949	833.7
1950	834.5
1951	865.2
1952	874.8
1953	890.5
1954	921.7
1955	931.3
1956	946.3
1957	960.6
1958	966.4
1959	999.4
1960	1061
1961	1047
1962	1116
1963	1321
1964	1388
1965	1353
1966	1466
1967	1583
1968	1547
1969	1474
1970	1476
1971	1504
1972	1504
1973	1576
1974	1580
1975	1631
1976	1578
1977	1577
1978	1559
1979	1641
1980	1696
1981	1700
1982	1749
1983	1776
1984	1794
1985	1783
1986	1768
1987	1751
1988	1754
1989	1683
1990	1657
1991	1646
1992	1663
1993	1672
1994	1545
1995	1562
1996	1503
1997	1527
1998	1505
1999	1495
2000	1476
2001	1486
2002	1507
2003	1503
2004	1460
2005	1481
2006	1459
2007	1428
2008	1403
2009	1391
2010	1383
2011	1378
2012	1390
2013	1409
2014	1435
2015	1461
2016	1488
2017	1515
2018	1543
2019	1572