Year	Measure
1800	1226
1801	1226
1802	1226
1803	1226
1804	1226
1805	1226
1806	1226
1807	1226
1808	1226
1809	1226
1810	1226
1811	1226
1812	1226
1813	1226
1814	1226
1815	1226
1816	1226
1817	1226
1818	1226
1819	1226
1820	1226
1821	1234
1822	1242
1823	1250
1824	1258
1825	1267
1826	1275
1827	1284
1828	1292
1829	1301
1830	1309
1831	1318
1832	1327
1833	1335
1834	1344
1835	1353
1836	1362
1837	1371
1838	1380
1839	1389
1840	1398
1841	1408
1842	1417
1843	1426
1844	1436
1845	1445
1846	1455
1847	1464
1848	1474
1849	1484
1850	1494
1851	1503
1852	1513
1853	1523
1854	1533
1855	1544
1856	1554
1857	1564
1858	1574
1859	1585
1860	1595
1861	1606
1862	1616
1863	1627
1864	1638
1865	1649
1866	1660
1867	1670
1868	1682
1869	1693
1870	1704
1871	1715
1872	1726
1873	1738
1874	1749
1875	1761
1876	1772
1877	1784
1878	1796
1879	1808
1880	1820
1881	1832
1882	1844
1883	1856
1884	1868
1885	1881
1886	1893
1887	1906
1888	1918
1889	1931
1890	1944
1891	1957
1892	1969
1893	1982
1894	1996
1895	2009
1896	2022
1897	2035
1898	2049
1899	2062
1900	2076
1901	2090
1902	2104
1903	2117
1904	2131
1905	2146
1906	2160
1907	2174
1908	2188
1909	2203
1910	2217
1911	2232
1912	2247
1913	2262
1914	2289
1915	2316
1916	2344
1917	2372
1918	2400
1919	2429
1920	2458
1921	2487
1922	2517
1923	2547
1924	2578
1925	2608
1926	2640
1927	2671
1928	2703
1929	2736
1930	2768
1931	2801
1932	2835
1933	2869
1934	2903
1935	2938
1936	2973
1937	3009
1938	3045
1939	3081
1940	3118
1941	3155
1942	3193
1943	3231
1944	3270
1945	3309
1946	3348
1947	3388
1948	3429
1949	3470
1950	3512
1951	3554
1952	3596
1953	3639
1954	3683
1955	3727
1956	3771
1957	3816
1958	3862
1959	3908
1960	3955
1961	4002
1962	4050
1963	4099
1964	4148
1965	4197
1966	4247
1967	4298
1968	4350
1969	4402
1970	4454
1971	4782
1972	5030
1973	5234
1974	5521
1975	5673
1976	6039
1977	6448
1978	6963
1979	7650
1980	8325
1981	8463
1982	8369
1983	8329
1984	9245
1985	9903
1986	11150
1987	12230
1988	13450
1989	14550
1990	14890
1991	14870
1992	15220
1993	16000
1994	16590
1995	16950
1996	17820
1997	18810
1998	18740
1999	19170
2000	19740
2001	19870
2002	19820
2003	19660
2004	20900
2005	21610
2006	22180
2007	22800
2008	23220
2009	21810
2010	21390
2011	20580
2012	20010
2013	19950
2014	20090
2015	20280
2016	20520
2017	20750
2018	20960
2019	21180
