Year Measure
1800 1157
1801 1157
1802 1157
1803 1157
1804 1157
1805 1157
1806 1157
1807 1157
1808 1157
1809 1157
1810 1157
1811 1157
1812 1157
1813 1157
1814 1157
1815 1157
1816 1157
1817 1157
1818 1157
1819 1157
1820 1157
1821 1159
1822 1161
1823 1164
1824 1166
1825 1168
1826 1170
1827 1173
1828 1175
1829 1177
1830 1179
1831 1181
1832 1184
1833 1186
1834 1188
1835 1190
1836 1193
1837 1195
1838 1197
1839 1199
1840 1202
1841 1204
1842 1206
1843 1208
1844 1211
1845 1213
1846 1215
1847 1218
1848 1220
1849 1222
1850 1225
1851 1227
1852 1229
1853 1232
1854 1234
1855 1236
1856 1239
1857 1241
1858 1243
1859 1246
1860 1248
1861 1250
1862 1253
1863 1255
1864 1257
1865 1260
1866 1262
1867 1265
1868 1267
1869 1269
1870 1272
1871 1278
1872 1284
1873 1290
1874 1295
1875 1301
1876 1308
1877 1314
1878 1320
1879 1326
1880 1332
1881 1338
1882 1344
1883 1351
1884 1357
1885 1363
1886 1369
1887 1376
1888 1382
1889 1389
1890 1395
1891 1401
1892 1408
1893 1414
1894 1421
1895 1428
1896 1434
1897 1441
1898 1448
1899 1454
1900 1461
1901 1468
1902 1475
1903 1481
1904 1488
1905 1495
1906 1502
1907 1509
1908 1516
1909 1523
1910 1530
1911 1537
1912 1578
1913 1728
1914 1766
1915 1800
1916 1912
1917 1984
1918 1861
1919 2222
1920 2131
1921 2063
1922 2211
1923 2130
1924 2035
1925 2306
1926 2527
1927 2402
1928 2667
1929 3229
1930 3140
1931 2972
1932 2681
1933 2764
1934 2956
1935 2619
1936 2837
1937 2512
1938 2613
1939 3089
1940 2453
1941 2377
1942 3211
1943 2936
1944 2685
1945 2455
1946 2245
1947 2052
1948 2275
1949 2938
1950 2993
1951 2764
1952 2825
1953 2764
1954 2861
1955 2803
1956 2890
1957 2792
1958 2712
1959 2817
1960 2938
1961 3056
1962 3142
1963 3204
1964 3316
1965 3463
1966 3544
1967 3514
1968 3728
1969 3850
1970 3991
1971 4186
1972 4395
1973 4914
1974 5160
1975 5084
1976 5587
1977 5905
1978 6278
1979 6635
1980 7020
1981 7340
1982 7590
1983 7862
1984 8269
1985 7979
1986 7879
1987 8098
1988 8604
1989 9195
1990 9851
1991 10550
1992 11230
1993 12060
1994 12870
1995 13820
1996 14880
1997 15630
1998 14180
1999 14740
2000 15670
2001 15420
2002 15740
2003 16350
2004 17150
2005 17690
2006 18430
2007 19330
2008 20010
2009 19320
2010 20340
2011 21100
2012 22000
2013 22810
2014 23600
2015 24360
2016 25160
2017 25970
2018 26810
2019 27680