Year	Measure
1764	1329
1765	1332
1766	1335
1767	1338
1768	1341
1769	1345
1770	1348
1771	1351
1772	1354
1773	1357
1774	1360
1775	1363
1776	1366
1777	1369
1778	1372
1779	1376
1780	1379
1781	1382
1782	1385
1783	1388
1784	1391
1785	1394
1786	1398
1787	1401
1788	1404
1789	1407
1790	1410
1791	1414
1792	1417
1793	1420
1794	1423
1795	1427
1796	1430
1797	1433
1798	1436
1799	1440
1800	1443
1801	1446
1802	1450
1803	1453
1804	1456
1805	1460
1806	1463
1807	1466
1808	1470
1809	1473
1810	1476
1811	1480
1812	1483
1813	1486
1814	1490
1815	1493
1816	1497
1817	1500
1818	1503
1819	1507
1820	1510
1821	1514
1822	1517
1823	1521
1824	1524
1825	1528
1826	1531
1827	1534
1828	1538
1829	1541
1830	1545
1831	1548
1832	1552
1833	1555
1834	1559
1835	1563
1836	1566
1837	1570
1838	1573
1839	1577
1840	1580
1841	1584
1842	1587
1843	1591
1844	1595
1845	1598
1846	1602
1847	1606
1848	1609
1849	1613
1850	1616
1851	1632
1852	1697
1853	1702
1854	1724
1855	1801
1856	1743
1857	1696
1858	1728
1859	1798
1860	1852
1861	1870
1862	1877
1863	1914
1864	1909
1865	1844
1866	1933
1867	1922
1868	1722
1869	1770
1870	1809
1871	1945
1872	2208
1873	2394
1874	2186
1875	2242
1876	2277
1877	2500
1878	2425
1879	2278
1880	2467
1881	2516
1882	2535
1883	2578
1884	2571
1885	2489
1886	2422
1887	2376
1888	2460
1889	2443
1890	2434
1891	2478
1892	2652
1893	2548
1894	2565
1895	2531
1896	2319
1897	2426
1898	2601
1899	2631
1900	2677
1901	2849
1902	2747
1903	2741
1904	2713
1905	2663
1906	2774
1907	2842
1908	2933
1909	2963
1910	2840
1911	3023
1912	2980
1913	3080
1914	3018
1915	3046
1916	3167
1917	3107
1918	3065
1919	3063
1920	3263
1921	3315
1922	3422
1923	3432
1924	3493
1925	3672
1926	3622
1927	3896
1928	3872
1929	4104
1930	3927
1931	3790
1932	3835
1933	3725
1934	3830
1935	3870
1936	2980
1937	2709
1938	2683
1939	2869
1940	3118
1941	3041
1942	3186
1943	3278
1944	3404
1945	3149
1946	3265
1947	3293
1948	3275
1949	3229
1950	3280
1951	3576
1952	3834
1953	3788
1954	4040
1955	4164
1956	4463
1957	4565
1958	4720
1959	4571
1960	4603
1961	5149
1962	5694
1963	6221
1964	6766
1965	7137
1966	7582
1967	7994
1968	8374
1969	9039
1970	9470
1971	9918
1972	10640
1973	11480
1974	12210
1975	12510
1976	12890
1977	13240
1978	13520
1979	13590
1980	13790
1981	13770
1982	13930
1983	14200
1984	14340
1985	14570
1986	14980
1987	15760
1988	16550
1989	17360
1990	18060
1991	18470
1992	18600
1993	18370
1994	18780
1995	19270
1996	19710
1997	20450
1998	21330
1999	22290
2000	23410
2001	24220
2002	24840
2003	25560
2004	26360
2005	27270
2006	27950
2007	28400
2008	28200
2009	26950
2010	26780
2011	26860
2012	26460
2013	26080
2014	26330
2015	26750
2016	27200
2017	27680
2018	28190
