Year	Measure
1790	1068
1791	1078
1792	918.5
1793	1012
1794	1008
1795	1004
1796	1000
1797	996.1
1798	992.1
1799	988.1
1800	984.1
1801	980.2
1802	976.2
1803	972.3
1804	968.4
1805	917.7
1806	918
1807	995.2
1808	871.4
1809	851.5
1810	941.2
1811	746.5
1812	756.1
1813	952.1
1814	964.1
1815	801.1
1816	835.2
1817	868.3
1818	921.1
1819	796.7
1820	787.2
1821	929
1822	866.7
1823	874.1
1824	881.5
1825	889
1826	896.6
1827	900.7
1828	904.8
1829	908.9
1830	865.4
1831	824
1832	818.6
1833	813.3
1834	807.9
1835	802.6
1836	797.4
1837	792.1
1838	786.9
1839	781.8
1840	776.6
1841	758.4
1842	740.6
1843	723.2
1844	696.2
1845	670.2
1846	645.2
1847	621.1
1848	643.4
1849	666.6
1850	690.6
1851	817.7
1852	857.4
1853	920.7
1854	895
1855	961.1
1856	774.1
1857	916.4
1858	801.8
1859	827.5
1860	857.3
1861	807.1
1862	594.5
1863	635.1
1864	886.4
1865	652.9
1866	678.5
1867	813.3
1868	831.5
1869	831.4
1870	893
1871	905.7
1872	1350
1873	1177
1874	1135
1875	1280
1876	1448
1877	1381
1878	1363
1879	1529
1880	1788
1881	1709
1882	1638
1883	1274
1884	1168
1885	997.9
1886	1192
1887	1376
1888	1570
1889	1572
1890	1602
1891	1688
1892	1666
1893	1670
1894	1642
1895	1912
1896	2021
1897	1912
1898	2322
1899	2064
1900	1469
1901	1599
1902	1931
1903	2618
1904	2647
1905	2859
1906	3123
1907	3101
1908	2462
1909	2609
1910	2640
1911	2643
1912	2647
1913	2650
1914	2654
1915	2657
1916	2660
1917	2664
1918	2667
1919	2710
1920	2752
1921	2796
1922	2840
1923	2885
1924	2931
1925	3124
1926	3206
1927	3268
1928	3516
1929	3433
1930	3241
1931	3062
1932	2945
1933	3264
1934	3617
1935	4007
1936	4385
1937	4674
1938	4486
1939	4709
1940	4920
1941	5050
1942	5105
1943	5119
1944	5195
1945	5225
1946	5300
1947	5247
1948	5536
1949	5495
1950	5814
1951	5942
1952	6007
1953	6135
1954	6337
1955	6491
1956	6683
1957	6768
1958	6741
1959	6869
1960	6974
1961	7091
1962	7291
1963	7617
1964	7912
1965	8162
1966	8291
1967	8623
1968	8759
1969	9050
1970	9277
1971	9484
1972	9424
1973	9575
1974	9860
1975	9795
1976	9786
1977	9529
1978	9573
1979	9706
1980	10070
1981	10270
1982	9915
1983	9431
1984	9600
1985	9188
1986	8972
1987	8938
1988	9091
1989	9073
1990	8791
1991	8520
1992	8174
1993	8103
1994	8220
1995	8362
1996	8607
1997	8720
1998	8644
1999	8736
2000	8990
2001	9133
2002	9364
2003	9539
2004	9876
2005	10300
2006	10770
2007	11270
2008	11580
2009	11340
2010	11650
2011	11910
2012	12040
2013	12110
2014	12220
2015	12380
2016	12600
2017	12810
2018	13020
2019	13240