Year Measure
1764 1239
1765 1240
1766 1242
1767 1243
1768 1244
1769 1245
1770 1247
1771 1248
1772 1249
1773 1250
1774 1252
1775 1253
1776 1254
1777 1255
1778 1257
1779 1258
1780 1259
1781 1260
1782 1262
1783 1263
1784 1264
1785 1265
1786 1267
1787 1268
1788 1269
1789 1270
1790 1272
1791 1273
1792 1274
1793 1275
1794 1277
1795 1278
1796 1279
1797 1281
1798 1282
1799 1283
1800 1284
1801 1286
1802 1287
1803 1288
1804 1290
1805 1291
1806 1292
1807 1293
1808 1295
1809 1296
1810 1297
1811 1299
1812 1300
1813 1301
1814 1302
1815 1304
1816 1305
1817 1306
1818 1308
1819 1309
1820 1310
1821 1310
1822 1310
1823 1310
1824 1310
1825 1310
1826 1310
1827 1310
1828 1310
1829 1310
1830 1310
1831 1311
1832 1311
1833 1311
1834 1311
1835 1311
1836 1311
1837 1311
1838 1311
1839 1311
1840 1311
1841 1311
1842 1311
1843 1311
1844 1311
1845 1311
1846 1311
1847 1311
1848 1311
1849 1311
1850 1311
1851 1407
1852 1381
1853 1355
1854 1329
1855 1304
1856 1295
1857 1287
1858 1278
1859 1270
1860 1262
1861 1253
1862 1256
1863 1259
1864 1262
1865 1266
1866 1306
1867 1336
1868 1342
1869 1369
1870 1384
1871 1324
1872 1355
1873 1403
1874 1372
1875 1362
1876 1322
1877 1376
1878 1369
1879 1362
1880 1345
1881 1377
1882 1409
1883 1431
1884 1467
1885 1493
1886 1562
1887 1581
1888 1587
1889 1545
1890 1601
1891 1561
1892 1543
1893 1563
1894 1532
1895 1586
1896 1597
1897 1678
1898 1724
1899 1773
1900 1849
1901 1802
1902 1797
1903 1807
1904 1816
1905 1750
1906 1747
1907 1774
1908 1731
1909 1715
1910 1743
1911 1763
1912 1784
1913 1775
1914 1785
1915 1743
1916 1751
1917 1721
1918 1632
1919 1666
1920 1745
1921 1831
1922 2030
1923 2092
1924 1989
1925 2053
1926 2015
1927 2339
1928 2087
1929 2286
1930 2230
1931 2316
1932 2332
1933 2459
1934 2532
1935 2369
1936 2162
1937 2495
1938 2481
1939 2483
1940 2293
1941 2480
1942 2425
1943 2564
1944 2687
1945 2560
1946 2737
1947 2939
1948 2905
1949 2920
1950 2962
1951 3077
1952 3068
1953 3262
1954 3398
1955 3513
1956 3640
1957 3775
1958 3794
1959 3966
1960 4196
1961 4428
1962 4728
1963 4974
1964 5279
1965 5668
1966 5911
1967 6362
1968 6918
1969 7079
1970 7769
1971 8334
1972 9022
1973 10030
1974 10010
1975 9252
1976 9674
1977 10170
1978 10420
1979 10980
1980 11420
1981 11520
1982 11750
1983 11720
1984 11480
1985 11790
1986 12270
1987 13040
1988 14010
1989 14720
1990 15370
1991 16050
1992 16210
1993 15810
1994 15870
1995 16490
1996 17030
1997 17640
1998 18370
1999 18960
2000 19610
2001 19900
2002 19970
2003 19730
2004 19940
2005 20010
2006 20220
2007 20640
2008 20600
2009 19980
2010 20350
2011 20160
2012 19580
2013 19100
2014 19190
2015 19470
2016 19810
2017 20170
2018 20530