Year	Measure
1800	702.1
1801	702.1
1802	702.1
1803	702.1
1804	702.1
1805	702.1
1806	702.1
1807	702.1
1808	702.1
1809	702.1
1810	702.1
1811	702.1
1812	702.1
1813	702.1
1814	702.1
1815	702.1
1816	702.1
1817	702.1
1818	702.1
1819	702.1
1820	702.1
1821	705.8
1822	709.5
1823	713.3
1824	717.1
1825	720.9
1826	724.7
1827	728.5
1828	732.3
1829	736.2
1830	740.1
1831	744
1832	748
1833	751.9
1834	755.9
1835	759.9
1836	763.9
1837	767.9
1838	772
1839	776.1
1840	780.2
1841	784.3
1842	788.4
1843	792.6
1844	796.8
1845	801
1846	805.2
1847	809.5
1848	813.8
1849	818.1
1850	822.4
1851	826.8
1852	831.1
1853	835.5
1854	839.9
1855	844.4
1856	848.8
1857	853.3
1858	857.8
1859	862.4
1860	866.9
1861	871.5
1862	876.1
1863	880.8
1864	885.4
1865	890.1
1866	894.8
1867	899.5
1868	904.3
1869	909.1
1870	913.9
1871	918.7
1872	923.5
1873	928.4
1874	933.3
1875	938.3
1876	943.2
1877	948.2
1878	953.2
1879	958.3
1880	963.3
1881	968.4
1882	973.5
1883	978.7
1884	983.9
1885	989.1
1886	994.3
1887	999.5
1888	1005
1889	1010
1890	1015
1891	1021
1892	1026
1893	1032
1894	1037
1895	1043
1896	1048
1897	1054
1898	1059
1899	1065
1900	1070
1901	1076
1902	1082
1903	1088
1904	1093
1905	1099
1906	1105
1907	1111
1908	1117
1909	1122
1910	1128
1911	1134
1912	1140
1913	1146
1914	1164
1915	1182
1916	1200
1917	1219
1918	1237
1919	1256
1920	1276
1921	1295
1922	1315
1923	1335
1924	1356
1925	1377
1926	1398
1927	1419
1928	1441
1929	1463
1930	1486
1931	1509
1932	1532
1933	1555
1934	1579
1935	1604
1936	1628
1937	1653
1938	1679
1939	1705
1940	1731
1941	1757
1942	1784
1943	1812
1944	1840
1945	1868
1946	1897
1947	1926
1948	1955
1949	1985
1950	2016
1951	2192
1952	2302
1953	2204
1954	2258
1955	2322
1956	2473
1957	2544
1958	2591
1959	2520
1960	2557
1961	2418
1962	2738
1963	2821
1964	2914
1965	2472
1966	2717
1967	2724
1968	2648
1969	2852
1970	3066
1971	3298
1972	3607
1973	3937
1974	4057
1975	4145
1976	4316
1977	4417
1978	4413
1979	4495
1980	4657
1981	4737
1982	4712
1983	4811
1984	4719
1985	4501
1986	4537
1987	4776
1988	4709
1989	5201
1990	4855
1991	4800
1992	5014
1993	5027
1994	5158
1995	5301
1996	5587
1997	5952
1998	6284
1999	6679
2000	7164
2001	7309
2002	7516
2003	7610
2004	7969
2005	8520
2006	9263
2007	9870
2008	10200
2009	10370
2010	10980
2011	11260
2012	11500
2013	11750
2014	12060
2015	12340
2016	12620
2017	12890
2018	13170
2019	13450