Year	Measure
1764	810.4
1765	812.8
1766	815.2
1767	817.7
1768	820.1
1769	822.6
1770	825
1771	826.5
1772	827.9
1773	829.4
1774	830.9
1775	832.3
1776	833.8
1777	835.3
1778	836.7
1779	838.2
1780	839.7
1781	841.2
1782	842.7
1783	844.2
1784	845.7
1785	847.2
1786	848.7
1787	850.2
1788	851.7
1789	853.2
1790	854.7
1791	856.2
1792	857.7
1793	859.2
1794	860.7
1795	862.3
1796	863.8
1797	865.3
1798	866.8
1799	868.4
1800	869.9
1801	871.5
1802	873
1803	874.5
1804	876.1
1805	877.6
1806	879.2
1807	880.7
1808	882.3
1809	883.9
1810	885.4
1811	887
1812	888.6
1813	890.1
1814	891.7
1815	893.3
1816	894.9
1817	896.4
1818	898
1819	899.6
1820	901.2
1821	905.7
1822	910.2
1823	914.8
1824	919.4
1825	923.9
1826	928.6
1827	933.2
1828	937.9
1829	942.5
1830	947.3
1831	952
1832	956.7
1833	961.5
1834	966.3
1835	971.2
1836	976
1837	980.9
1838	985.8
1839	990.7
1840	995.7
1841	1001
1842	1006
1843	1011
1844	1016
1845	1021
1846	1026
1847	1031
1848	1036
1849	1041
1850	1047
1851	1052
1852	1057
1853	1062
1854	1068
1855	1073
1856	1078
1857	1084
1858	1089
1859	1095
1860	1100
1861	1105
1862	1111
1863	1117
1864	1122
1865	1128
1866	1133
1867	1139
1868	1145
1869	1150
1870	1156
1871	1167
1872	1177
1873	1166
1874	1155
1875	1143
1876	1132
1877	1122
1878	1111
1879	1100
1880	1110
1881	1124
1882	1139
1883	1154
1884	1169
1885	1184
1886	1199
1887	1215
1888	1231
1889	1247
1890	1263
1891	1279
1892	1296
1893	1313
1894	1330
1895	1347
1896	1365
1897	1383
1898	1401
1899	1419
1900	1437
1901	1456
1902	1475
1903	1494
1904	1513
1905	1533
1906	1553
1907	1573
1908	1594
1909	1614
1910	1635
1911	1657
1912	1678
1913	1700
1914	1606
1915	1517
1916	1434
1917	1354
1918	1280
1919	1209
1920	1142
1921	1079
1922	1020
1923	963.2
1924	1140
1925	1257
1926	1445
1927	1300
1928	1413
1929	1607
1930	1648
1931	1712
1932	1578
1933	1751
1934	1758
1935	1759
1936	2051
1937	2075
1938	2211
1939	2318
1940	2133
1941	1913
1942	1968
1943	1762
1944	1663
1945	1418
1946	1783
1947	1834
1948	2027
1949	1873
1950	1995
1951	2186
1952	2376
1953	2564
1954	2415
1955	2527
1956	2523
1957	2631
1958	2655
1959	2681
1960	2666
1961	2626
1962	2706
1963	2880
1964	2920
1965	2918
1966	3176
1967	3234
1968	3363
1969	3449
1970	3524
1971	3744
1972	3879
1973	3938
1974	4138
1975	4381
1976	4636
1977	4715
1978	4730
1979	4578
1980	4437
1981	4503
1982	4602
1983	4645
1984	4785
1985	4901
1986	5113
1987	5425
1988	5503
1989	5438
1990	5808
1991	5733
1992	5946
1993	6290
1994	5827
1995	6125
1996	6432
1997	6791
1998	6877
1999	6443
2000	6803
2001	6193
2002	6578
2003	6856
2004	7357
2005	7786
2006	8223
2007	8507
2008	8457
2009	7942
2010	8556
2011	9165
2012	9287
2013	9488
2014	9728
2015	10030
2016	10360
2017	10700
2018	11070