Year Measure
1800 750
1801 750
1802 750
1803 750
1804 750
1805 750
1806 750
1807 750
1808 750
1809 750
1810 750
1811 750
1812 750
1813 750
1814 750
1815 750
1816 750
1817 750
1818 750
1819 750
1820 750
1821 754.6
1822 759.2
1823 763.8
1824 768.4
1825 773.1
1826 777.8
1827 782.6
1828 787.3
1829 792.1
1830 797
1831 801.8
1832 806.7
1833 811.6
1834 816.6
1835 821.5
1836 826.5
1837 831.6
1838 836.6
1839 841.7
1840 846.9
1841 852
1842 857.2
1843 862.4
1844 867.7
1845 873
1846 878.3
1847 883.6
1848 889
1849 894.4
1850 899.9
1851 905.4
1852 910.9
1853 916.4
1854 922
1855 927.6
1856 933.3
1857 939
1858 944.7
1859 950.4
1860 956.2
1861 962
1862 967.9
1863 973.8
1864 979.7
1865 985.7
1866 991.7
1867 997.7
1868 1004
1869 1010
1870 1016
1871 1026
1872 1036
1873 1046
1874 1056
1875 1067
1876 1077
1877 1088
1878 1098
1879 1109
1880 1120
1881 1131
1882 1142
1883 1153
1884 1164
1885 1176
1886 1187
1887 1199
1888 1210
1889 1222
1890 1234
1891 1246
1892 1258
1893 1271
1894 1283
1895 1296
1896 1308
1897 1321
1898 1334
1899 1347
1900 1360
1901 1374
1902 1387
1903 1400
1904 1414
1905 1428
1906 1442
1907 1456
1908 1470
1909 1485
1910 1499
1911 1514
1912 1529
1913 1544
1914 1569
1915 1596
1916 1623
1917 1650
1918 1678
1919 1706
1920 1735
1921 1764
1922 1794
1923 1824
1924 1855
1925 1886
1926 1918
1927 1950
1928 1983
1929 2016
1930 2050
1931 2085
1932 2120
1933 2156
1934 2192
1935 2229
1936 2266
1937 2305
1938 2343
1939 2383
1940 2423
1941 2464
1942 2505
1943 2547
1944 2590
1945 2634
1946 2678
1947 2723
1948 2769
1949 2816
1950 2863
1951 2792
1952 2723
1953 2659
1954 2594
1955 2529
1956 2685
1957 2982
1958 3243
1959 3428
1960 3660
1961 3864
1962 3834
1963 4141
1964 4321
1965 4718
1966 5048
1967 5464
1968 6119
1969 6730
1970 7247
1971 7933
1972 8985
1973 9504
1974 10070
1975 10280
1976 11710
1977 11230
1978 9598
1979 8478
1980 7007
1981 6524
1982 7258
1983 7909
1984 7749
1985 7654
1986 6696
1987 6402
1988 5892
1989 5959
1990 6332
1991 6771
1992 7045
1993 7171
1994 7331
1995 7496
1996 7835
1997 8129
1998 8185
1999 8260
2000 8601
2001 8834
2002 9184
2003 9725
2004 10300
2005 10690
2006 11180
2007 11760
2008 11680
2009 11970
2010 12480
2011 12720
2012 12330
2013 12020
2014 11990
2015 12070
2016 12180
2017 12290
2018 12430