Year	Measure
1700	987.4
1701	988.3
1702	989.3
1703	990.3
1704	991.3
1705	992.3
1706	993.3
1707	994.3
1708	995.3
1709	996.3
1710	997.3
1711	998.3
1712	999.3
1713	1000
1714	1001
1715	1002
1716	1003
1717	1004
1718	1005
1719	1006
1720	1007
1721	1008
1722	1009
1723	1010
1724	1011
1725	1012
1726	1013
1727	1014
1728	1015
1729	1016
1730	1017
1731	1018
1732	1019
1733	1020
1734	1021
1735	1022
1736	1024
1737	1025
1738	1026
1739	1027
1740	1028
1741	1029
1742	1030
1743	1031
1744	1032
1745	1033
1746	1034
1747	1035
1748	1036
1749	1037
1750	1038
1751	1039
1752	1040
1753	1041
1754	1042
1755	1043
1756	1044
1757	1045
1758	1046
1759	1047
1760	1048
1761	1049
1762	1050
1763	1051
1764	1053
1765	1054
1766	1055
1767	1056
1768	1057
1769	1058
1770	1059
1771	1060
1772	1061
1773	1062
1774	1063
1775	1064
1776	1065
1777	1066
1778	1067
1779	1068
1780	1069
1781	1071
1782	1072
1783	1073
1784	1074
1785	1075
1786	1076
1787	1077
1788	1078
1789	1079
1790	1080
1791	1081
1792	1082
1793	1083
1794	1085
1795	1086
1796	1087
1797	1088
1798	1089
1799	1090
1800	1091
1801	1092
1802	1093
1803	1094
1804	1095
1805	1097
1806	1098
1807	1099
1808	1100
1809	1101
1810	1102
1811	1103
1812	1104
1813	1105
1814	1106
1815	1108
1816	1109
1817	1110
1818	1111
1819	1112
1820	1113
1821	1122
1822	1131
1823	1140
1824	1149
1825	1159
1826	1168
1827	1177
1828	1187
1829	1196
1830	1206
1831	1216
1832	1226
1833	1235
1834	1245
1835	1255
1836	1265
1837	1276
1838	1286
1839	1296
1840	1307
1841	1317
1842	1328
1843	1339
1844	1349
1845	1360
1846	1371
1847	1382
1848	1393
1849	1405
1850	1416
1851	1421
1852	1426
1853	1432
1854	1437
1855	1443
1856	1448
1857	1453
1858	1459
1859	1464
1860	1470
1861	1475
1862	1481
1863	1487
1864	1492
1865	1498
1866	1503
1867	1509
1868	1515
1869	1520
1870	1526
1871	1552
1872	1579
1873	1606
1874	1634
1875	1662
1876	1691
1877	1720
1878	1750
1879	1780
1880	1810
1881	1842
1882	1873
1883	1906
1884	1938
1885	1972
1886	2006
1887	2040
1888	2076
1889	2111
1890	2148
1891	2162
1892	2177
1893	2192
1894	2207
1895	2222
1896	2237
1897	2252
1898	2267
1899	2282
1900	2298
1901	2335
1902	2372
1903	2410
1904	2448
1905	2487
1906	2527
1907	2568
1908	2609
1909	2650
1910	2693
1911	2693
1912	2693
1913	2693
1914	2683
1915	2674
1916	2664
1917	2655
1918	2646
1919	2636
1920	2627
1921	2653
1922	2692
1923	2792
1924	2950
1925	3052
1926	3219
1927	3121
1928	3348
1929	3475
1930	3359
1931	3212
1932	2873
1933	2922
1934	2989
1935	2904
1936	3236
1937	3244
1938	3456
1939	3597
1940	3565
1941	3534
1942	3503
1943	3472
1944	3441
1945	3411
1946	3381
1947	3351
1948	3945
1949	4276
1950	3951
1951	4054
1952	3690
1953	4185
1954	4361
1955	4579
1956	4437
1957	5132
1958	5299
1959	5895
1960	6209
1961	6424
1962	6480
1963	7086
1964	7692
1965	7823
1966	8165
1967	8234
1968	8337
1969	9196
1970	9565
1971	10570
1972	10840
1973	11110
1974	12430
1975	12320
1976	12580
1977	13370
1978	13990
1979	14820
1980	15450
1981	15630
1982	15640
1983	15690
1984	16000
1985	16040
1986	16610
1987	16350
1988	16050
1989	15780
1990	14570
1991	12890
1992	9760
1993	6123
1994	6130
1995	6895
1996	8632
1997	9011
1998	9251
1999	8380
2000	8621
2001	8797
2002	9139
2003	9606
2004	10280
2005	10920
2006	11840
2007	12820
2008	13670
2009	12840
2010	13100
2011	14070
2012	13680
2013	14120
2014	14490
2015	14880
2016	15240
2017	15660
2018	16080
2019	16540