Year	Measure
1800	662.5
1801	662.5
1802	662.5
1803	662.5
1804	662.5
1805	662.5
1806	662.5
1807	662.5
1808	662.5
1809	662.5
1810	662.5
1811	662.5
1812	662.5
1813	662.5
1814	662.5
1815	662.5
1816	662.5
1817	662.5
1818	662.5
1819	662.5
1820	662.5
1821	663.7
1822	664.9
1823	666.1
1824	667.4
1825	668.6
1826	669.8
1827	671
1828	672.2
1829	673.5
1830	674.7
1831	675.9
1832	677.1
1833	678.4
1834	679.6
1835	680.8
1836	682.1
1837	683.3
1838	684.6
1839	685.8
1840	687.1
1841	688.3
1842	689.6
1843	690.8
1844	692.1
1845	693.3
1846	694.6
1847	695.9
1848	697.1
1849	698.4
1850	699.7
1851	700.9
1852	702.2
1853	703.5
1854	704.8
1855	706.1
1856	707.4
1857	708.6
1858	709.9
1859	711.2
1860	712.5
1861	713.8
1862	715.1
1863	716.4
1864	717.7
1865	719
1866	720.3
1867	721.6
1868	723
1869	724.3
1870	725.6
1871	726.9
1872	728.2
1873	729.6
1874	730.9
1875	732.2
1876	733.6
1877	734.9
1878	736.2
1879	737.6
1880	738.9
1881	740.3
1882	741.6
1883	743
1884	744.3
1885	745.7
1886	747
1887	748.4
1888	749.7
1889	751.1
1890	752.5
1891	753.8
1892	755.2
1893	756.6
1894	758
1895	759.4
1896	760.7
1897	762.1
1898	763.5
1899	764.9
1900	766.3
1901	767.7
1902	769.1
1903	770.5
1904	771.9
1905	773.3
1906	774.7
1907	776.1
1908	777.5
1909	778.9
1910	780.4
1911	781.8
1912	783.2
1913	784.6
1914	786.1
1915	787.5
1916	788.9
1917	790.4
1918	791.8
1919	793.2
1920	794.7
1921	796.1
1922	797.6
1923	799
1924	800.5
1925	801.9
1926	803.4
1927	804.9
1928	806.3
1929	807.8
1930	809.3
1931	810.7
1932	812.2
1933	813.7
1934	815.2
1935	816.7
1936	818.1
1937	819.6
1938	821.1
1939	822.6
1940	824.1
1941	825.6
1942	827.1
1943	828.6
1944	830.1
1945	831.7
1946	833.2
1947	834.7
1948	836.2
1949	837.7
1950	839.3
1951	847.7
1952	856.3
1953	865
1954	873.7
1955	882.6
1956	891.5
1957	900.5
1958	909.6
1959	918.8
1960	928.1
1961	937.5
1962	947
1963	956.6
1964	966.2
1965	976
1966	985.9
1967	995.9
1968	1006
1969	1016
1970	1026
1971	1017
1972	991.7
1973	969.2
1974	981.7
1975	915.2
1976	962.1
1977	1002
1978	1038
1979	1054
1980	1074
1981	1165
1982	1163
1983	1227
1984	1272
1985	1307
1986	1446
1987	1835
1988	1885
1989	1984
1990	2188
1991	2216
1992	2338
1993	2442
1994	2639
1995	2845
1996	3016
1997	3145
1998	3261
1999	3426
2000	3588
2001	3740
2002	3998
2003	4183
2004	4354
2005	4536
2006	4736
2007	5472
2008	5623
2009	5898
2010	6475
2011	6909
2012	7308
2013	7655
2014	8125
2015	8721
2016	9417
2017	10210
2018	11360
2019	12240