Year	Measure
1700	1257
1701	1258
1702	1260
1703	1261
1704	1262
1705	1263
1706	1265
1707	1266
1708	1267
1709	1268
1710	1270
1711	1271
1712	1272
1713	1273
1714	1275
1715	1276
1716	1277
1717	1279
1718	1280
1719	1281
1720	1282
1721	1284
1722	1285
1723	1286
1724	1288
1725	1289
1726	1290
1727	1291
1728	1293
1729	1294
1730	1295
1731	1297
1732	1298
1733	1299
1734	1300
1735	1302
1736	1303
1737	1304
1738	1306
1739	1307
1740	1308
1741	1310
1742	1311
1743	1312
1744	1314
1745	1315
1746	1316
1747	1317
1748	1319
1749	1320
1750	1321
1751	1323
1752	1324
1753	1325
1754	1327
1755	1328
1756	1329
1757	1331
1758	1332
1759	1333
1760	1335
1761	1336
1762	1337
1763	1339
1764	1340
1765	1341
1766	1343
1767	1344
1768	1345
1769	1347
1770	1348
1771	1349
1772	1351
1773	1352
1774	1353
1775	1355
1776	1356
1777	1358
1778	1359
1779	1360
1780	1362
1781	1363
1782	1364
1783	1366
1784	1367
1785	1368
1786	1370
1787	1371
1788	1373
1789	1374
1790	1375
1791	1377
1792	1378
1793	1379
1794	1381
1795	1382
1796	1384
1797	1385
1798	1386
1799	1388
1800	1389
1801	1390
1802	1392
1803	1393
1804	1395
1805	1396
1806	1397
1807	1399
1808	1400
1809	1402
1810	1403
1811	1404
1812	1406
1813	1407
1814	1409
1815	1410
1816	1411
1817	1413
1818	1414
1819	1416
1820	1417
1821	1429
1822	1440
1823	1452
1824	1463
1825	1475
1826	1487
1827	1499
1828	1511
1829	1523
1830	1535
1831	1548
1832	1560
1833	1573
1834	1585
1835	1598
1836	1611
1837	1624
1838	1637
1839	1650
1840	1664
1841	1677
1842	1691
1843	1704
1844	1718
1845	1732
1846	1746
1847	1760
1848	1774
1849	1788
1850	1803
1851	1809
1852	1816
1853	1823
1854	1830
1855	1837
1856	1844
1857	1850
1858	1857
1859	1864
1860	1871
1861	1878
1862	1885
1863	1893
1864	1900
1865	1907
1866	1914
1867	1921
1868	1928
1869	1936
1870	1943
1871	1976
1872	2010
1873	2045
1874	2080
1875	2116
1876	2153
1877	2190
1878	2227
1879	2266
1880	2305
1881	2345
1882	2385
1883	2426
1884	2468
1885	2510
1886	2554
1887	2598
1888	2642
1889	2688
1890	2734
1891	2753
1892	2772
1893	2790
1894	2809
1895	2828
1896	2848
1897	2867
1898	2886
1899	2906
1900	2926
1901	2972
1902	3020
1903	3068
1904	3117
1905	3167
1906	3218
1907	3269
1908	3321
1909	3374
1910	3428
1911	3428
1912	3428
1913	3428
1914	3416
1915	3404
1916	3392
1917	3380
1918	3368
1919	3357
1920	3345
1921	3378
1922	3427
1923	3555
1924	3756
1925	3885
1926	4098
1927	3974
1928	4263
1929	4425
1930	4276
1931	4089
1932	3658
1933	3720
1934	3805
1935	3697
1936	4119
1937	4130
1938	4400
1939	4579
1940	4539
1941	4499
1942	4459
1943	4420
1944	4381
1945	4343
1946	4305
1947	4267
1948	5022
1949	5444
1950	5031
1951	5161
1952	4698
1953	5328
1954	5553
1955	5830
1956	5649
1957	6534
1958	6746
1959	7505
1960	7904
1961	8179
1962	8250
1963	9021
1964	9793
1965	9959
1966	10400
1967	10480
1968	10610
1969	11710
1970	12180
1971	13460
1972	13800
1973	14140
1974	15830
1975	15690
1976	16020
1977	17030
1978	17810
1979	18870
1980	19670
1981	19900
1982	19910
1983	19970
1984	20370
1985	20420
1986	21150
1987	20820
1988	20430
1989	20090
1990	18550
1991	14540
1992	12720
1993	11600
1994	12200
1995	13010
1996	13820
1997	14870
1998	15400
1999	15410
2000	15940
2001	16670
2002	17510
2003	18190
2004	18810
2005	19930
2006	20920
2007	22000
2008	22470
2009	20930
2010	20510
2011	20570
2012	20190
2013	19980
2014	19860
2015	19940
2016	20200
2017	20590
2018	21020
2019	21440