Year	Measure
1764	1141
1765	1143
1766	1145
1767	1147
1768	1149
1769	1151
1770	1153
1771	1155
1772	1157
1773	1159
1774	1161
1775	1163
1776	1165
1777	1167
1778	1169
1779	1171
1780	1173
1781	1175
1782	1177
1783	1179
1784	1181
1785	1183
1786	1185
1787	1187
1788	1189
1789	1191
1790	1193
1791	1195
1792	1197
1793	1199
1794	1201
1795	1203
1796	1205
1797	1207
1798	1209
1799	1211
1800	1213
1801	1215
1802	1217
1803	1219
1804	1221
1805	1224
1806	1226
1807	1228
1808	1230
1809	1232
1810	1234
1811	1236
1812	1238
1813	1240
1814	1242
1815	1245
1816	1247
1817	1249
1818	1251
1819	1253
1820	1255
1821	1273
1822	1291
1823	1309
1824	1328
1825	1347
1826	1366
1827	1385
1828	1405
1829	1425
1830	1445
1831	1466
1832	1486
1833	1508
1834	1529
1835	1551
1836	1573
1837	1595
1838	1618
1839	1641
1840	1664
1841	1687
1842	1711
1843	1736
1844	1760
1845	1473
1846	1232
1847	1400
1848	1232
1849	1200
1850	1550
1851	1800
1852	1970
1853	1998
1854	2027
1855	2055
1856	2085
1857	2114
1858	2144
1859	2175
1860	2205
1861	2237
1862	2268
1863	2301
1864	2333
1865	2366
1866	2400
1867	2434
1868	2469
1869	2504
1870	2539
1871	2565
1872	2591
1873	2617
1874	2643
1875	2670
1876	2697
1877	2724
1878	2752
1879	2780
1880	2808
1881	2836
1882	2865
1883	2894
1884	2923
1885	2953
1886	2983
1887	3013
1888	3043
1889	3074
1890	3105
1891	3137
1892	3168
1893	3200
1894	3233
1895	3265
1896	3298
1897	3332
1898	3365
1899	3400
1900	3434
1901	3469
1902	3504
1903	3539
1904	3575
1905	3611
1906	3648
1907	3684
1908	3722
1909	3759
1910	3797
1911	3836
1912	3875
1913	3914
1914	3876
1915	3839
1916	3802
1917	3765
1918	3729
1919	3693
1920	3658
1921	3623
1922	3717
1923	3683
1924	3675
1925	3680
1926	3678
1927	3795
1928	3915
1929	4040
1930	4144
1931	4251
1932	4127
1933	4005
1934	4122
1935	4243
1936	4366
1937	4229
1938	4366
1939	4366
1940	4366
1941	4366
1942	4366
1943	4366
1944	4366
1945	4318
1946	4366
1947	4423
1948	4621
1949	4870
1950	4939
1951	5070
1952	5210
1953	5360
1954	5427
1955	5608
1956	5575
1957	5599
1958	5535
1959	5777
1960	6125
1961	6449
1962	6632
1963	6897
1964	7132
1965	7226
1966	7267
1967	7656
1968	8253
1969	8710
1970	8868
1971	9089
1972	9531
1973	9823
1974	10070
1975	10470
1976	10450
1977	11150
1978	11800
1979	11970
1980	12220
1981	12470
1982	12620
1983	12500
1984	12950
1985	13310
1986	13250
1987	13870
1988	14640
1989	15560
1990	16900
1991	17120
1992	17560
1993	17930
1994	18870
1995	20580
1996	22140
1997	24520
1998	26130
1999	28500
2000	30830
2001	32340
2002	34080
2003	35190
2004	36300
2005	38060
2006	39180
2007	39960
2008	38160
2009	35700
2010	35260
2011	35600
2012	35860
2013	36020
2014	36600
2015	37370
2016	38060
2017	38750
2018	39470
