Year Measure
1800 703.7
1801 703.7
1802 703.7
1803 703.7
1804 703.7
1805 703.7
1806 703.7
1807 703.7
1808 703.7
1809 703.7
1810 703.7
1811 703.7
1812 703.7
1813 703.7
1814 703.7
1815 703.7
1816 703.7
1817 703.7
1818 703.7
1819 703.7
1820 703.7
1821 707.2
1822 710.7
1823 714.2
1824 717.7
1825 721.3
1826 724.9
1827 728.5
1828 732.1
1829 735.7
1830 739.4
1831 743
1832 746.7
1833 750.4
1834 754.1
1835 757.9
1836 761.6
1837 765.4
1838 769.2
1839 773
1840 776.9
1841 780.7
1842 784.6
1843 788.5
1844 792.4
1845 796.3
1846 800.3
1847 804.2
1848 808.2
1849 812.2
1850 816.3
1851 816.6
1852 816.9
1853 817.3
1854 817.6
1855 818
1856 818.3
1857 818.7
1858 819
1859 819.3
1860 819.7
1861 820
1862 820.4
1863 820.7
1864 821.1
1865 821.4
1866 821.8
1867 822.1
1868 822.4
1869 822.8
1870 823.1
1871 834.3
1872 845.7
1873 857.2
1874 868.9
1875 880.7
1876 892.7
1877 904.9
1878 917.2
1879 929.7
1880 942.3
1881 955.1
1882 968.1
1883 981.3
1884 994.7
1885 1008
1886 1022
1887 1036
1888 1050
1889 1064
1890 1079
1891 1082
1892 1085
1893 1088
1894 1092
1895 1095
1896 1098
1897 1102
1898 1105
1899 1108
1900 1112
1901 1125
1902 1138
1903 1152
1904 1166
1905 1180
1906 1194
1907 1208
1908 1223
1909 1238
1910 1252
1911 1247
1912 1242
1913 1238
1914 1228
1915 1219
1916 1210
1917 1200
1918 1191
1919 1182
1920 1173
1921 1180
1922 1192
1923 1231
1924 1296
1925 1335
1926 1402
1927 1353
1928 1446
1929 1494
1930 1438
1931 1369
1932 1219
1933 1234
1934 1257
1935 1216
1936 1349
1937 1346
1938 1428
1939 1479
1940 1460
1941 1440
1942 1421
1943 1402
1944 1383
1945 1365
1946 1347
1947 1329
1948 1557
1949 1679
1950 1545
1951 1577
1952 1429
1953 1613
1954 1672
1955 1747
1956 1685
1957 1939
1958 1993
1959 2206
1960 2312
1961 2380
1962 2389
1963 2599
1964 2807
1965 2840
1966 2949
1967 2959
1968 2980
1969 3271
1970 3384
1971 3721
1972 3795
1973 3868
1974 4305
1975 4245
1976 4311
1977 4558
1978 4741
1979 4997
1980 5178
1981 5210
1982 5185
1983 5171
1984 5243
1985 5228
1986 5384
1987 5269
1988 5142
1989 5025
1990 4614
1991 4055
1992 3057
1993 2275
1994 2442
1995 2641
1996 4186
1997 5720
1998 6302
1999 6655
2000 6881
2001 7058
2002 7224
2003 7318
2004 7582
2005 7808
2006 8273
2007 8786
2008 9289
2009 9035
2010 9117
2011 9248
2012 9151
2013 9276
2014 9477
2015 9800
2016 10190
2017 10620
2018 11070
2019 11540