Year	Measure
1764	1114
1765	1110
1766	1106
1767	1103
1768	1099
1769	1095
1770	1091
1771	1088
1772	1084
1773	1080
1774	1077
1775	1073
1776	1069
1777	1066
1778	1062
1779	1059
1780	1055
1781	1051
1782	1048
1783	1044
1784	1041
1785	1037
1786	1034
1787	1030
1788	1027
1789	1023
1790	1020
1791	1016
1792	1013
1793	1010
1794	1006
1795	1003
1796	999.3
1797	996
1798	992.6
1799	989.2
1800	985.9
1801	979.4
1802	972.9
1803	966.4
1804	960
1805	953.6
1806	947.3
1807	941
1808	934.8
1809	928.6
1810	922.4
1811	916.3
1812	910.2
1813	904.2
1814	898.2
1815	892.2
1816	886.3
1817	880.4
1818	874.6
1819	868.8
1820	863
1821	859
1822	855
1823	851
1824	847
1825	843.1
1826	839.2
1827	835.2
1828	831.3
1829	827.5
1830	823.6
1831	819.7
1832	815.9
1833	812.1
1834	808.3
1835	804.5
1836	800.8
1837	797
1838	793.3
1839	789.6
1840	785.9
1841	782.3
1842	778.6
1843	775
1844	771.4
1845	767.8
1846	764.2
1847	760.6
1848	757.1
1849	753.5
1850	750
1851	675.4
1852	608.2
1853	547.7
1854	493.2
1855	444.2
1856	400
1857	420.8
1858	442.7
1859	465.7
1860	489.9
1861	515.4
1862	542.2
1863	570.3
1864	600
1865	626.8
1866	654.7
1867	684
1868	714.5
1869	746.4
1870	779.7
1871	780.4
1872	781.2
1873	781.9
1874	782.7
1875	783.5
1876	784.2
1877	785
1878	785.8
1879	786.5
1880	787.3
1881	788.1
1882	788.9
1883	789.6
1884	790.4
1885	791.2
1886	792
1887	792.7
1888	793.5
1889	794.3
1890	795.1
1891	795.8
1892	796.5
1893	797.2
1894	797.9
1895	798.7
1896	799.4
1897	800.1
1898	800.8
1899	801.6
1900	802.3
1901	803.1
1902	803.8
1903	804.6
1904	805.4
1905	806.2
1906	807
1907	807.7
1908	808.5
1909	809.3
1910	810.1
1911	810.9
1912	811.7
1913	812.5
1914	823.4
1915	834.5
1916	845.8
1917	857.2
1918	868.7
1919	880.4
1920	892.3
1921	904.3
1922	916.5
1923	928.9
1924	941.4
1925	954.1
1926	966.9
1927	980
1928	993.2
1929	1007
1930	1016
1931	1018
1932	1043
1933	1035
1934	940.2
1935	1011
1936	1069
1937	1037
1938	1006
1939	930.7
1940	860.8
1941	796.2
1942	736.4
1943	681.2
1944	630
1945	582.7
1946	539
1947	498.5
1948	461.1
1949	426.5
1950	394.5
1951	432.3
1952	473.4
1953	486.2
1954	490.4
1955	507.6
1956	542.5
1957	560
1958	607.9
1959	604.4
1960	583
1961	486.8
1962	484.7
1963	519.8
1964	567.8
1965	617.8
1966	657.1
1967	622.5
1968	594.3
1969	627.8
1970	685.4
1971	700
1972	702.9
1973	738.2
1974	735.4
1975	767.1
1976	750.8
1977	786.9
1978	861.1
1979	915.2
1980	934.3
1981	977.5
1982	1044
1983	1107
1984	1229
1985	1338
1986	1406
1987	1530
1988	1611
1989	1615
1990	1647
1991	1732
1992	1877
1993	2036
1994	2214
1995	2521
1996	2546
1997	2653
1998	2636
1999	2784
2000	3012
2001	3310
2002	3696
2003	4229
2004	4551
2005	4909
2006	5502
2007	6249
2008	6817
2009	7409
2010	8143
2011	8858
2012	9502
2013	10210
2014	11000
2015	11880
2016	12830
2017	13850
2018	14950