Year	Measure
1800	896.1
1801	897.6
1802	899
1803	900.5
1804	902
1805	903.5
1806	904.9
1807	906.4
1808	907.9
1809	909.4
1810	910.9
1811	912.4
1812	913.9
1813	915.4
1814	916.9
1815	918.4
1816	919.9
1817	921.4
1818	922.9
1819	924.4
1820	926
1821	930
1822	934.1
1823	938.3
1824	942.4
1825	946.5
1826	950.7
1827	954.9
1828	959.1
1829	963.3
1830	967.6
1831	971.9
1832	976.1
1833	980.4
1834	984.8
1835	989.1
1836	993.5
1837	997.8
1838	1002
1839	1007
1840	1011
1841	1016
1842	1020
1843	1025
1844	1029
1845	1034
1846	1038
1847	1043
1848	1047
1849	1052
1850	1057
1851	1061
1852	1066
1853	1071
1854	1075
1855	1080
1856	1085
1857	1090
1858	1094
1859	1099
1860	1104
1861	1109
1862	1114
1863	1119
1864	1124
1865	1129
1866	1134
1867	1139
1868	1144
1869	1149
1870	1154
1871	1159
1872	1164
1873	1169
1874	1174
1875	1179
1876	1185
1877	1190
1878	1195
1879	1200
1880	1206
1881	1211
1882	1216
1883	1222
1884	1227
1885	1232
1886	1238
1887	1243
1888	1249
1889	1254
1890	1260
1891	1265
1892	1271
1893	1277
1894	1282
1895	1288
1896	1293
1897	1299
1898	1305
1899	1311
1900	1316
1901	1322
1902	1328
1903	1334
1904	1340
1905	1346
1906	1352
1907	1358
1908	1364
1909	1370
1910	1376
1911	1382
1912	1388
1913	1394
1914	1419
1915	1445
1916	1471
1917	1498
1918	1525
1919	1553
1920	1581
1921	1610
1922	1639
1923	1669
1924	1699
1925	1730
1926	1762
1927	1794
1928	1826
1929	1860
1930	1893
1931	1928
1932	1963
1933	1998
1934	2035
1935	2072
1936	2109
1937	2148
1938	2187
1939	2227
1940	2267
1941	2308
1942	2350
1943	2393
1944	2436
1945	2481
1946	2526
1947	2572
1948	2618
1949	2666
1950	2714
1951	2818
1952	2942
1953	2948
1954	3102
1955	3064
1956	2930
1957	2927
1958	3036
1959	3092
1960	3735
1961	3477
1962	3505
1963	3700
1964	3710
1965	3434
1966	3165
1967	2591
1968	2534
1969	2898
1970	3373
1971	3762
1972	3795
1973	3901
1974	4224
1975	3894
1976	4124
1977	4242
1978	3877
1979	4018
1980	4070
1981	3441
1982	3319
1983	3074
1984	2937
1985	3103
1986	2759
1987	2400
1988	2515
1989	2610
1990	2870
1991	2783
1992	2728
1993	2719
1994	2679
1995	2609
1996	2676
1997	2688
1998	2697
1999	2647
2000	2722
2001	2861
2002	3388
2003	3644
2004	3927
2005	4080
2006	4220
2007	4382
2008	4542
2009	4737
2010	4981
2011	5217
2012	5412
2013	5597
2014	5836
2015	6078
2016	6322
2017	6577
2018	6823
2019	7083