Year	Measure
1800	550.1
1801	550.1
1802	550.1
1803	550.1
1804	550.1
1805	550.1
1806	550.1
1807	550.1
1808	550.1
1809	550.1
1810	550.1
1811	550.1
1812	550.1
1813	550.1
1814	550.1
1815	550.1
1816	550.1
1817	550.1
1818	550.1
1819	550.1
1820	550.1
1821	550.2
1822	550.3
1823	550.4
1824	550.5
1825	550.6
1826	550.7
1827	550.8
1828	550.9
1829	551.1
1830	551.2
1831	551.3
1832	551.4
1833	551.5
1834	551.6
1835	551.7
1836	551.8
1837	551.9
1838	552
1839	552.1
1840	552.2
1841	552.4
1842	552.5
1843	552.6
1844	552.7
1845	552.8
1846	552.9
1847	553
1848	553.1
1849	553.2
1850	553.3
1851	553.4
1852	553.6
1853	553.7
1854	553.8
1855	553.9
1856	554
1857	554.1
1858	554.2
1859	554.3
1860	554.4
1861	554.5
1862	554.7
1863	554.8
1864	554.9
1865	555
1866	555.1
1867	555.2
1868	555.3
1869	555.4
1870	555.5
1871	555.6
1872	555.7
1873	555.9
1874	556
1875	556.1
1876	556.2
1877	556.3
1878	556.4
1879	556.5
1880	556.6
1881	556.7
1882	556.8
1883	557
1884	557.1
1885	557.2
1886	557.3
1887	557.4
1888	557.5
1889	557.6
1890	557.7
1891	557.8
1892	557.9
1893	558.1
1894	558.2
1895	558.3
1896	558.4
1897	558.5
1898	558.6
1899	558.7
1900	558.8
1901	558.9
1902	559
1903	559.2
1904	559.3
1905	559.4
1906	559.5
1907	559.6
1908	559.7
1909	559.8
1910	559.9
1911	560
1912	560.1
1913	560.3
1914	561
1915	561.8
1916	562.5
1917	563.3
1918	564.1
1919	564.8
1920	565.6
1921	566.4
1922	567.1
1923	567.9
1924	568.7
1925	569.5
1926	570.2
1927	571
1928	571.8
1929	572.6
1930	573.3
1931	574.1
1932	574.9
1933	575.7
1934	576.5
1935	577.2
1936	578
1937	578.8
1938	579.6
1939	580.4
1940	581.2
1941	582
1942	582.7
1943	583.5
1944	584.3
1945	585.1
1946	585.9
1947	586.7
1948	587.5
1949	588.3
1950	589.1
1951	595.8
1952	602.5
1953	626.6
1954	615.8
1955	637.5
1956	646.8
1957	630.4
1958	639.2
1959	644.3
1960	664.6
1961	675.8
1962	685.7
1963	697.4
1964	705.4
1965	733.7
1966	752.8
1967	783.9
1968	806.3
1969	815.9
1970	784.1
1971	797.5
1972	808.7
1973	804
1974	784.5
1975	732.5
1976	719.8
1977	707.6
1978	657.3
1979	715.6
1980	717.7
1981	718.8
1982	705.5
1983	737.6
1984	697.6
1985	598.3
1986	635.6
1987	700.9
1988	682.6
1989	657.5
1990	652.5
1991	585.3
1992	516
1993	563.8
1994	562.4
1995	577.7
1996	629.7
1997	630.5
1998	591.4
1999	604.5
2000	623
2001	655.6
2002	646.6
2003	614.7
2004	678.5
2005	737.8
2006	795.5
2007	863
2008	930.8
2009	986.3
2010	1081
2011	1171
2012	1242
2013	1331
2014	1396
2015	1469
2016	1538
2017	1610
2018	1689
2019	1764