Year	Measure
1800	898.5
1801	898.5
1802	898.5
1803	898.5
1804	898.5
1805	898.5
1806	898.5
1807	898.5
1808	898.5
1809	898.5
1810	898.5
1811	898.5
1812	898.5
1813	898.5
1814	898.5
1815	898.5
1816	898.5
1817	898.5
1818	898.5
1819	898.5
1820	898.5
1821	906.9
1822	915.4
1823	924
1824	932.6
1825	941.4
1826	950.2
1827	959.1
1828	968.1
1829	977.1
1830	986.3
1831	995.5
1832	1005
1833	1014
1834	1024
1835	1033
1836	1043
1837	1053
1838	1063
1839	1073
1840	1083
1841	1093
1842	1103
1843	1113
1844	1124
1845	1134
1846	1145
1847	1156
1848	1166
1849	1177
1850	1188
1851	1199
1852	1211
1853	1222
1854	1233
1855	1245
1856	1257
1857	1268
1858	1280
1859	1292
1860	1304
1861	1317
1862	1329
1863	1341
1864	1354
1865	1367
1866	1379
1867	1392
1868	1405
1869	1419
1870	1432
1871	1445
1872	1459
1873	1472
1874	1486
1875	1500
1876	1514
1877	1528
1878	1543
1879	1557
1880	1572
1881	1586
1882	1601
1883	1616
1884	1631
1885	1647
1886	1662
1887	1678
1888	1693
1889	1709
1890	1725
1891	1741
1892	1758
1893	1774
1894	1791
1895	1807
1896	1824
1897	1841
1898	1859
1899	1876
1900	1894
1901	1911
1902	1929
1903	1947
1904	1966
1905	1984
1906	2003
1907	2021
1908	2040
1909	2059
1910	2079
1911	2098
1912	2118
1913	2138
1914	2158
1915	2178
1916	2198
1917	2219
1918	2239
1919	2260
1920	2282
1921	2303
1922	2325
1923	2346
1924	2368
1925	2390
1926	2413
1927	2435
1928	2458
1929	2481
1930	2504
1931	2528
1932	2552
1933	2575
1934	2600
1935	2624
1936	2648
1937	2673
1938	2698
1939	2724
1940	2749
1941	2775
1942	2801
1943	2827
1944	2853
1945	2880
1946	2898
1947	2915
1948	2944
1949	2971
1950	3271
1951	3430
1952	3461
1953	3068
1954	3066
1955	3159
1956	2908
1957	2751
1958	2754
1959	2685
1960	2738
1961	2732
1962	2819
1963	2932
1964	3003
1965	3078
1966	3223
1967	3344
1968	3543
1969	3613
1970	3709
1971	3757
1972	3853
1973	4017
1974	4122
1975	4288
1976	4512
1977	4587
1978	4627
1979	4519
1980	4384
1981	4341
1982	4081
1983	3834
1984	3808
1985	3717
1986	3535
1987	3560
1988	3621
1989	3645
1990	3745
1991	3855
1992	3829
1993	3898
1994	3994
1995	4091
1996	4181
1997	4300
1998	4434
1999	4366
2000	4388
2001	4383
2002	4412
2003	4461
2004	4562
2005	4677
2006	4800
2007	4916
2008	5115
2009	5183
2010	5294
2011	5462
2012	5637
2013	5908
2014	6094
2015	6279
2016	6470
2017	6667
2018	6870
2019	7079