Year	Measure
1800	898.5
1801	901.2
1802	903.9
1803	906.6
1804	909.3
1805	912
1806	914.7
1807	917.4
1808	920.2
1809	922.9
1810	925.7
1811	928.4
1812	931.2
1813	934
1814	936.8
1815	939.6
1816	942.4
1817	945.2
1818	948
1819	950.8
1820	953.7
1821	956.5
1822	959.4
1823	962.2
1824	965.1
1825	968
1826	970.9
1827	973.8
1828	976.7
1829	979.6
1830	982.5
1831	985.5
1832	988.4
1833	991.3
1834	994.3
1835	997.3
1836	1000
1837	1003
1838	1006
1839	1009
1840	1012
1841	1015
1842	1018
1843	1021
1844	1024
1845	1027
1846	1031
1847	1034
1848	1037
1849	1040
1850	1043
1851	1046
1852	1049
1853	1052
1854	1055
1855	1059
1856	1062
1857	1065
1858	1068
1859	1071
1860	1074
1861	1078
1862	1081
1863	1084
1864	1087
1865	1091
1866	1094
1867	1097
1868	1100
1869	1104
1870	1107
1871	1110
1872	1114
1873	1117
1874	1120
1875	1124
1876	1127
1877	1130
1878	1134
1879	1137
1880	1140
1881	1144
1882	1147
1883	1151
1884	1154
1885	1158
1886	1161
1887	1164
1888	1168
1889	1171
1890	1175
1891	1178
1892	1182
1893	1185
1894	1189
1895	1193
1896	1196
1897	1200
1898	1203
1899	1207
1900	1210
1901	1221
1902	1231
1903	1241
1904	1252
1905	1262
1906	1273
1907	1283
1908	1294
1909	1305
1910	1316
1911	1327
1912	1338
1913	1349
1914	1360
1915	1372
1916	1383
1917	1395
1918	1407
1919	1418
1920	1430
1921	1442
1922	1454
1923	1467
1924	1479
1925	1491
1926	1504
1927	1516
1928	1529
1929	1542
1930	1555
1931	1568
1932	1581
1933	1594
1934	1607
1935	1621
1936	1635
1937	1648
1938	1662
1939	1676
1940	1690
1941	1704
1942	1718
1943	1733
1944	1747
1945	1762
1946	1777
1947	1792
1948	1807
1949	1822
1950	1837
1951	2100
1952	1926
1953	1790
1954	1885
1955	1941
1956	1983
1957	2013
1958	1960
1959	1841
1960	1934
1961	1808
1962	1897
1963	1917
1964	1968
1965	1998
1966	2165
1967	2184
1968	2113
1969	2174
1970	1993
1971	2049
1972	2076
1973	2106
1974	2130
1975	2045
1976	2050
1977	2156
1978	2264
1979	2262
1980	2300
1981	2297
1982	2292
1983	2237
1984	2192
1985	2203
1986	2276
1987	2325
1988	2384
1989	2411
1990	2429
1991	2382
1992	2288
1993	2224
1994	2215
1995	2246
1996	2276
1997	2222
1998	2239
1999	2229
2000	2183
2001	2222
2002	2177
2003	2182
2004	2234
2005	2306
2006	2389
2007	2492
2008	2466
2009	2469
2010	2544
2011	2585
2012	2631
2013	2704
2014	2797
2015	2897
2016	3002
2017	3113
2018	3230
2019	3355