Year	Measure
1800	1144
1801	1144
1802	1144
1803	1144
1804	1144
1805	1144
1806	1144
1807	1144
1808	1144
1809	1144
1810	1144
1811	1144
1812	1144
1813	1144
1814	1144
1815	1144
1816	1144
1817	1144
1818	1144
1819	1144
1820	1144
1821	1149
1822	1153
1823	1158
1824	1163
1825	1167
1826	1172
1827	1176
1828	1181
1829	1186
1830	1190
1831	1195
1832	1200
1833	1204
1834	1209
1835	1214
1836	1219
1837	1224
1838	1228
1839	1233
1840	1238
1841	1243
1842	1248
1843	1253
1844	1258
1845	1263
1846	1268
1847	1273
1848	1278
1849	1283
1850	1288
1851	1293
1852	1298
1853	1303
1854	1308
1855	1313
1856	1318
1857	1324
1858	1329
1859	1334
1860	1339
1861	1345
1862	1350
1863	1355
1864	1361
1865	1366
1866	1371
1867	1377
1868	1382
1869	1388
1870	1393
1871	1404
1872	1415
1873	1426
1874	1437
1875	1448
1876	1459
1877	1470
1878	1482
1879	1493
1880	1505
1881	1516
1882	1528
1883	1540
1884	1552
1885	1564
1886	1576
1887	1588
1888	1600
1889	1613
1890	1625
1891	1638
1892	1650
1893	1663
1894	1676
1895	1689
1896	1702
1897	1715
1898	1728
1899	1742
1900	1755
1901	1769
1902	1782
1903	1796
1904	1810
1905	1824
1906	1838
1907	1852
1908	1867
1909	1881
1910	1896
1911	1910
1912	1925
1913	1940
1914	1967
1915	1994
1916	2022
1917	2050
1918	2078
1919	2107
1920	2136
1921	2166
1922	2196
1923	2226
1924	2257
1925	2288
1926	2320
1927	2352
1928	2384
1929	2417
1930	2451
1931	2485
1932	2519
1933	2554
1934	2589
1935	2625
1936	2662
1937	2699
1938	2736
1939	2774
1940	2812
1941	2851
1942	2891
1943	2931
1944	2971
1945	3012
1946	3054
1947	3096
1948	3139
1949	3183
1950	3227
1951	3289
1952	3348
1953	3408
1954	3467
1955	3153
1956	4151
1957	4083
1958	4307
1959	4437
1960	4520
1961	5210
1962	5082
1963	5140
1964	5783
1965	6176
1966	6087
1967	5935
1968	5187
1969	5380
1970	4647
1971	4590
1972	4569
1973	4634
1974	4862
1975	5011
1976	6007
1977	6174
1978	7214
1979	7603
1980	8691
1981	8735
1982	9008
1983	8839
1984	9248
1985	9224
1986	9704
1987	9629
1988	9215
1989	7960
1990	7358
1991	6763
1992	7428
1993	7628
1994	7816
1995	8078
1996	7941
1997	7891
1998	7846
1999	7850
2000	7932
2001	8102
2002	8323
2003	8429
2004	8908
2005	9295
2006	9819
2007	10390
2008	10900
2009	11250
2010	11260
2011	11290
2012	11330
2013	11440
2014	11570
2015	11760
2016	12020
2017	12280
2018	12540
2019	12810