Year	Measure
1800	732.1
1801	732.1
1802	732.1
1803	732.1
1804	732.1
1805	732.1
1806	732.1
1807	732.1
1808	732.1
1809	732.1
1810	732.1
1811	732.1
1812	732.1
1813	732.1
1814	732.1
1815	732.1
1816	732.1
1817	732.1
1818	732.1
1819	732.1
1820	732.1
1821	731.5
1822	730.9
1823	730.3
1824	729.7
1825	729.1
1826	728.4
1827	727.8
1828	727.2
1829	726.6
1830	726
1831	725.4
1832	724.8
1833	724.2
1834	723.6
1835	723
1836	722.4
1837	721.7
1838	721.1
1839	720.5
1840	719.9
1841	719.3
1842	718.7
1843	718.1
1844	717.5
1845	716.9
1846	716.3
1847	715.7
1848	715.1
1849	714.5
1850	713.9
1851	713.3
1852	712.7
1853	712.1
1854	711.5
1855	710.9
1856	710.3
1857	709.7
1858	709.1
1859	708.5
1860	707.9
1861	707.3
1862	706.7
1863	706.2
1864	705.6
1865	705
1866	704.4
1867	703.8
1868	703.2
1869	702.6
1870	702
1871	708
1872	714
1873	720.1
1874	726.2
1875	732.3
1876	738.6
1877	744.8
1878	751.2
1879	757.5
1880	764
1881	770.5
1882	777
1883	783.6
1884	790.3
1885	797
1886	803.8
1887	810.6
1888	817.5
1889	824.4
1890	831.4
1891	838.5
1892	845.6
1893	852.8
1894	860
1895	867.3
1896	874.7
1897	882.1
1898	889.6
1899	897.2
1900	904.8
1901	912.5
1902	920.2
1903	928.1
1904	935.9
1905	943.9
1906	951.9
1907	960
1908	968.1
1909	976.4
1910	984.7
1911	993
1912	1001
1913	1010
1914	1007
1915	1005
1916	1002
1917	999.1
1918	996.4
1919	993.8
1920	991.1
1921	988.4
1922	985.8
1923	983.1
1924	980.5
1925	977.8
1926	975.2
1927	972.6
1928	969.9
1929	967.3
1930	964.7
1931	962.1
1932	959.5
1933	956.9
1934	954.4
1935	951.8
1936	949.2
1937	946.7
1938	944.1
1939	941.6
1940	939
1941	936.5
1942	934
1943	931.5
1944	929
1945	926.5
1946	924
1947	921.5
1948	919
1949	916.5
1950	914.1
1951	939.4
1952	963.6
1953	989.3
1954	1017
1955	1042
1956	1061
1957	1077
1958	1090
1959	1100
1960	1110
1961	1128
1962	1230
1963	1226
1964	1244
1965	1218
1966	1193
1967	1015
1968	971.3
1969	1027
1970	1021
1971	1047
1972	1114
1973	1161
1974	1088
1975	986.1
1976	1124
1977	1136
1978	1119
1979	1104
1980	1052
1981	1065
1982	1126
1983	1162
1984	1238
1985	1282
1986	1290
1987	1307
1988	1356
1989	1384
1990	1424
1991	1477
1992	1575
1993	1671
1994	1786
1995	1924
1996	2071
1997	2207
1998	2303
1999	2382
2000	2512
2001	2654
2002	2810
2003	2982
2004	3180
2005	3411
2006	3646
2007	3908
2008	4105
2009	4273
2010	4508
2011	4717
2012	4913
2013	5126
2014	5357
2015	5603
2016	5867
2017	6149
2018	6450
2019	6766