Year	Measure
1764	614.5
1765	614.4
1766	614.2
1767	614
1768	613.9
1769	613.7
1770	613.6
1771	613.4
1772	613.2
1773	613.1
1774	612.9
1775	612.8
1776	612.6
1777	612.4
1778	612.3
1779	612.1
1780	612
1781	611.8
1782	611.7
1783	611.5
1784	611.3
1785	611.2
1786	611
1787	610.9
1788	610.7
1789	610.5
1790	610.4
1791	610.2
1792	610.1
1793	609.9
1794	609.7
1795	609.6
1796	609.4
1797	609.3
1798	609.1
1799	609
1800	608.8
1801	608.6
1802	608.5
1803	608.3
1804	608.2
1805	608
1806	607.8
1807	607.7
1808	607.5
1809	607.4
1810	607.2
1811	607.1
1812	606.9
1813	606.7
1814	606.6
1815	606.4
1816	606.3
1817	606.1
1818	606
1819	605.8
1820	605.6
1821	605.6
1822	605.6
1823	605.6
1824	605.6
1825	605.6
1826	605.6
1827	605.6
1828	605.6
1829	605.6
1830	605.6
1831	605.6
1832	605.6
1833	605.6
1834	605.6
1835	605.6
1836	605.6
1837	605.6
1838	605.6
1839	605.6
1840	605.6
1841	605.6
1842	605.6
1843	605.6
1844	605.5
1845	605.5
1846	605.5
1847	605.5
1848	605.5
1849	605.5
1850	605.5
1851	605.5
1852	605.5
1853	605.5
1854	605.6
1855	605.6
1856	605.6
1857	605.6
1858	605.6
1859	605.6
1860	605.6
1861	605.6
1862	605.6
1863	605.6
1864	605.6
1865	605.6
1866	605.6
1867	605.7
1868	605.7
1869	605.7
1870	605.7
1871	607.1
1872	608.5
1873	609.9
1874	611.3
1875	612.7
1876	614.1
1877	615.5
1878	616.9
1879	618.3
1880	619.7
1881	621.1
1882	622.6
1883	624
1884	625.4
1885	643.8
1886	622.3
1887	649.5
1888	654.2
1889	635.3
1890	663.6
1891	601.5
1892	648.7
1893	664
1894	673
1895	655.3
1896	605.9
1897	715.4
1898	715.7
1899	658.8
1900	680.7
1901	690.5
1902	743.6
1903	749.6
1904	748.5
1905	730.5
1906	746.8
1907	697.3
1908	703
1909	794.8
1910	791.4
1911	784.7
1912	782.4
1913	764
1914	805
1915	784.7
1916	806.8
1917	791.5
1918	689.6
1919	784.2
1920	721.4
1921	771.9
1922	796.4
1923	762.6
1924	791.9
1925	793.3
1926	809.9
1927	802
1928	802
1929	826.8
1930	824.4
1931	807.9
1932	805.6
1933	795.1
1934	791.4
1935	773
1936	791.9
1937	768.1
1938	759.3
1939	765.3
1940	779.7
1941	784.6
1942	771.9
1943	793.2
1944	775.7
1945	754.3
1946	706.4
1947	701.6
1948	700.9
1949	709.3
1950	673.4
1951	675.3
1952	684.2
1953	682.7
1954	682.5
1955	633.5
1956	687.9
1957	661.6
1958	636
1959	656.3
1960	679.4
1961	703.5
1962	686.3
1963	741
1964	734.1
1965	758.1
1966	752.6
1967	721.2
1968	772.1
1969	766.7
1970	785.1
1971	731.1
1972	630.2
1973	619.9
1974	682.1
1975	659.7
1976	674.2
1977	659.9
1978	687.1
1979	698.5
1980	683.5
1981	686.6
1982	677
1983	693
1984	713.9
1985	719.6
1986	735.9
1987	752
1988	759
1989	763.5
1990	798.6
1991	810.2
1992	837.8
1993	862.9
1994	884.1
1995	912.8
1996	939.2
1997	972.8
1998	1005
1999	1035
2000	1075
2001	1110
2002	1136
2003	1172
2004	1221
2005	1268
2006	1334
2007	1402
2008	1470
2009	1541
2010	1621
2011	1708
2012	1793
2013	1880
2014	1979
2015	2087
2016	2205
2017	2334
2018	2474