Year	Measure
1800	512.2
1801	512.2
1802	512.2
1803	512.2
1804	512.2
1805	512.2
1806	512.2
1807	512.2
1808	512.2
1809	512.2
1810	512.2
1811	512.2
1812	512.2
1813	512.2
1814	512.2
1815	512.2
1816	512.2
1817	512.2
1818	512.2
1819	512.2
1820	512.2
1821	515.5
1822	519
1823	522.4
1824	525.8
1825	529.3
1826	532.8
1827	536.3
1828	539.9
1829	543.4
1830	547
1831	550.6
1832	554.3
1833	557.9
1834	561.6
1835	565.3
1836	569.1
1837	572.8
1838	576.6
1839	580.4
1840	584.3
1841	588.1
1842	592
1843	595.9
1844	599.9
1845	603.8
1846	607.8
1847	611.8
1848	615.9
1849	619.9
1850	624
1851	628.2
1852	632.3
1853	636.5
1854	640.7
1855	644.9
1856	649.2
1857	653.5
1858	657.8
1859	662.2
1860	666.5
1861	670.9
1862	675.4
1863	679.8
1864	684.3
1865	688.8
1866	693.4
1867	698
1868	702.6
1869	707.2
1870	711.9
1871	716.6
1872	721.3
1873	726.1
1874	730.9
1875	735.7
1876	740.6
1877	745.5
1878	750.4
1879	755.4
1880	760.4
1881	765.4
1882	770.5
1883	775.5
1884	780.7
1885	785.8
1886	791
1887	796.2
1888	801.5
1889	806.8
1890	812.1
1891	817.5
1892	822.9
1893	828.3
1894	833.8
1895	839.3
1896	844.9
1897	850.5
1898	856.1
1899	861.7
1900	867.4
1901	873.2
1902	878.9
1903	884.7
1904	890.6
1905	896.5
1906	902.4
1907	908.4
1908	914.4
1909	920.4
1910	926.5
1911	932.6
1912	938.8
1913	945
1914	963.8
1915	983
1916	1003
1917	1022
1918	1043
1919	1064
1920	1085
1921	1106
1922	1128
1923	1151
1924	1174
1925	1197
1926	1221
1927	1245
1928	1270
1929	1295
1930	1321
1931	1347
1932	1374
1933	1402
1934	1429
1935	1458
1936	1487
1937	1517
1938	1547
1939	1577
1940	1609
1941	1641
1942	1674
1943	1707
1944	1741
1945	1776
1946	1811
1947	1847
1948	1884
1949	1921
1950	1959
1951	1998
1952	2038
1953	2079
1954	2120
1955	2162
1956	2205
1957	2249
1958	2294
1959	2340
1960	2386
1961	2434
1962	2482
1963	2532
1964	2582
1965	2633
1966	2686
1967	2739
1968	2794
1969	2849
1970	2906
1971	3150
1972	3383
1973	3617
1974	3868
1975	4149
1976	4471
1977	4830
1978	5216
1979	5608
1980	5990
1981	6349
1982	6692
1983	7041
1984	7429
1985	7871
1986	8379
1987	8939
1988	9557
1989	10200
1990	10750
1991	11230
1992	11610
1993	12230
1994	13050
1995	13320
1996	13960
1997	14440
1998	15430
1999	16100
2000	16100
2001	16300
2002	15540
2003	16050
2004	17010
2005	18730
2006	20690
2007	21460
2008	22430
2009	19240
2010	20090
2011	20880
2012	20290
2013	20280