Year	Measure
1800	750.3
1801	750.3
1802	750.3
1803	750.3
1804	750.3
1805	750.3
1806	750.3
1807	750.3
1808	750.3
1809	750.3
1810	750.3
1811	750.3
1812	750.3
1813	750.3
1814	750.3
1815	750.3
1816	750.3
1817	750.3
1818	750.3
1819	750.3
1820	750.3
1821	750.9
1822	751.6
1823	752.2
1824	752.8
1825	753.5
1826	754.1
1827	754.7
1828	755.3
1829	756
1830	756.6
1831	757.2
1832	757.9
1833	758.5
1834	759.1
1835	759.8
1836	760.4
1837	761
1838	761.7
1839	762.3
1840	763
1841	763.6
1842	764.2
1843	764.9
1844	765.5
1845	766.1
1846	766.8
1847	767.4
1848	768.1
1849	768.7
1850	769.4
1851	785.4
1852	801.7
1853	818.4
1854	835.5
1855	852.9
1856	870.6
1857	888.7
1858	907.2
1859	926.1
1860	945.4
1861	965.1
1862	985.2
1863	1006
1864	1027
1865	1048
1866	1070
1867	1092
1868	1115
1869	1138
1870	1162
1871	1128
1872	1071
1873	1076
1874	1057
1875	1065
1876	1076
1877	1082
1878	979.2
1879	1050
1880	1133
1881	1210
1882	1276
1883	1285
1884	1234
1885	1149
1886	1106
1887	1290
1888	1257
1889	1230
1890	1426
1891	1415
1892	1436
1893	1436
1894	1424
1895	1480
1896	1485
1897	1535
1898	1593
1899	1683
1900	1761
1901	1626
1902	1604
1903	1672
1904	1658
1905	1609
1906	1624
1907	1683
1908	1666
1909	1573
1910	1648
1911	1583
1912	1578
1913	1684
1914	1651
1915	1551
1916	1600
1917	1662
1918	1511
1919	1592
1920	1490
1921	1445
1922	1482
1923	1454
1924	1539
1925	1620
1926	1728
1927	1721
1928	1715
1929	1822
1930	1726
1931	1641
1932	1557
1933	1569
1934	1719
1935	1616
1936	1603
1937	1701
1938	1672
1939	1619
1940	1707
1941	1742
1942	1805
1943	1752
1944	1575
1945	1523
1946	1433
1947	1465
1948	1582
1949	1636
1950	1710
1951	1765
1952	1792
1953	1774
1954	1771
1955	1827
1956	1794
1957	1774
1958	1780
1959	1759
1960	1774
1961	1761
1962	1777
1963	1769
1964	1810
1965	1824
1966	1761
1967	1878
1968	1973
1969	2007
1970	2059
1971	2003
1972	2007
1973	2052
1974	2087
1975	2102
1976	2129
1977	2231
1978	2328
1979	2434
1980	2523
1981	2639
1982	2726
1983	2828
1984	2930
1985	3013
1986	3119
1987	3104
1988	3141
1989	3179
1990	3340
1991	3454
1992	3563
1993	3758
1994	3913
1995	4077
1996	4185
1997	4407
1998	4569
1999	4721
2000	4959
2001	4839
2002	4988
2003	5238
2004	5476
2005	5758
2006	6151
2007	6518
2008	6852
2009	7040
2010	7545
2011	8112
2012	8576
2013	9130
2014	9703
2015	10260
2016	10860
2017	11480
2018	12150
2019	12850