Year	Measure
1800	700
1801	700
1802	700
1803	700
1804	700
1805	700
1806	700
1807	700
1808	700
1809	700
1810	700
1811	700
1812	700
1813	700
1814	700
1815	700
1816	700
1817	700
1818	700
1819	700
1820	700
1821	706.7
1822	713.5
1823	720.4
1824	727.3
1825	734.3
1826	741.4
1827	748.5
1828	755.7
1829	763
1830	770.3
1831	777.7
1832	785.2
1833	792.7
1834	800.4
1835	808.1
1836	815.8
1837	823.7
1838	831.6
1839	839.6
1840	847.7
1841	855.8
1842	864.1
1843	872.4
1844	880.7
1845	889.2
1846	897.8
1847	906.4
1848	915.1
1849	923.9
1850	932.8
1851	941.8
1852	950.8
1853	960
1854	969.2
1855	978.5
1856	987.9
1857	997.4
1858	1007
1859	1017
1860	1026
1861	1036
1862	1046
1863	1056
1864	1067
1865	1077
1866	1087
1867	1098
1868	1108
1869	1119
1870	1130
1871	1145
1872	1160
1873	1175
1874	1191
1875	1207
1876	1223
1877	1239
1878	1256
1879	1272
1880	1289
1881	1307
1882	1324
1883	1342
1884	1359
1885	1378
1886	1396
1887	1414
1888	1433
1889	1452
1890	1472
1891	1491
1892	1511
1893	1531
1894	1552
1895	1572
1896	1593
1897	1615
1898	1636
1899	1658
1900	1680
1901	1702
1902	1725
1903	1748
1904	1771
1905	1795
1906	1819
1907	1843
1908	1868
1909	1892
1910	1918
1911	1943
1912	1969
1913	1995
1914	2023
1915	2052
1916	2080
1917	2110
1918	2139
1919	2169
1920	2200
1921	2231
1922	2262
1923	2294
1924	2326
1925	2359
1926	2392
1927	2425
1928	2459
1929	2494
1930	2529
1931	2564
1932	2600
1933	2637
1934	2674
1935	2711
1936	2749
1937	2788
1938	2827
1939	2867
1940	2907
1941	2948
1942	2989
1943	3031
1944	3074
1945	3117
1946	3161
1947	3205
1948	3250
1949	3296
1950	3342
1951	3562
1952	3857
1953	5305
1954	6173
1955	5791
1956	6054
1957	5860
1958	6388
1959	6501
1960	7086
1961	7715
1962	7903
1963	7565
1964	8253
1965	8758
1966	8970
1967	8522
1968	9761
1969	9817
1970	9511
1971	9823
1972	9202
1973	10450
1974	10710
1975	12150
1976	14220
1977	14220
1978	16300
1979	19450
1980	18470
1981	14680
1982	14150
1983	12570
1984	12240
1985	11710
1986	11250
1987	11430
1988	8802
1989	7825
1990	7525
1991	2914
1992	3703
1993	3614
1994	3350
1995	2973
1996	3265
1997	3063
1998	3439
1999	3644
2000	3952
2001	4210
2002	4403
2003	3367
2004	3293
2005	3200
2006	3422
2007	3372
2008	3497
2009	3603
2010	3761
2011	3959
2012	4161
2013	4397
2014	4623
2015	4858
2016	5142
2017	5417
2018	5699