Year	Measure
1800	1050
1801	1050
1802	1050
1803	1050
1804	1050
1805	1050
1806	1050
1807	1050
1808	1050
1809	1050
1810	1050
1811	1050
1812	1050
1813	1050
1814	1050
1815	1050
1816	1050
1817	1050
1818	1050
1819	1050
1820	1050
1821	1054
1822	1059
1823	1064
1824	1069
1825	1073
1826	1078
1827	1083
1828	1088
1829	1093
1830	1098
1831	1102
1832	1107
1833	1112
1834	1117
1835	1122
1836	1127
1837	1132
1838	1137
1839	1143
1840	1148
1841	1153
1842	1158
1843	1163
1844	1168
1845	1174
1846	1179
1847	1184
1848	1189
1849	1195
1850	1200
1851	1205
1852	1211
1853	1216
1854	1222
1855	1227
1856	1233
1857	1238
1858	1244
1859	1249
1860	1255
1861	1260
1862	1266
1863	1272
1864	1277
1865	1283
1866	1289
1867	1295
1868	1300
1869	1306
1870	1312
1871	1318
1872	1324
1873	1313
1874	1302
1875	1292
1876	1281
1877	1271
1878	1260
1879	1250
1880	1260
1881	1296
1882	1333
1883	1371
1884	1410
1885	1450
1886	1465
1887	1480
1888	1496
1889	1511
1890	1527
1891	1543
1892	1559
1893	1575
1894	1591
1895	1608
1896	1624
1897	1641
1898	1658
1899	1675
1900	1693
1901	1710
1902	1728
1903	1746
1904	1764
1905	1783
1906	1742
1907	1750
1908	1785
1909	1762
1910	1783
1911	1811
1912	1805
1913	1827
1914	1748
1915	1785
1916	1770
1917	1712
1918	1673
1919	1722
1920	1566
1921	1578
1922	1661
1923	1748
1924	1823
1925	1833
1926	1815
1927	1827
1928	1843
1929	1837
1930	1762
1931	1779
1932	1819
1933	1869
1934	1863
1935	1894
1936	1906
1937	1912
1938	1851
1939	1801
1940	1811
1941	1803
1942	1718
1943	1726
1944	1740
1945	1774
1946	1787
1947	1799
1948	1812
1949	1824
1950	1837
1951	1832
1952	1910
1953	1957
1954	1860
1955	1813
1956	1802
1957	1842
1958	1970
1959	2005
1960	2108
1961	2157
1962	2150
1963	2171
1964	2487
1965	2549
1966	2482
1967	2406
1968	2487
1969	2639
1970	3079
1971	3113
1972	3162
1973	3116
1974	3124
1975	3211
1976	3571
1977	3764
1978	3972
1979	4281
1980	4599
1981	4570
1982	4773
1983	5058
1984	5317
1985	5551
1986	5668
1987	5783
1988	5894
1989	5939
1990	6024
1991	5977
1992	6137
1993	6215
1994	6363
1995	6557
1996	6778
1997	7040
1998	7211
1999	7532
2000	7812
2001	7959
2002	8017
2003	8138
2004	8332
2005	8561
2006	8995
2007	9472
2008	9980
2009	10270
2010	10620
2011	10630
2012	10590
2013	10600
2014	10620
2015	10840
2016	11060
2017	11280
2018	11500
2019	11730