Year Measure
1800 609.2
1801 609.2
1802 609.2
1803 609.2
1804 609.2
1805 609.2
1806 609.2
1807 609.2
1808 609.2
1809 609.2
1810 609.2
1811 609.2
1812 609.2
1813 609.2
1814 609.2
1815 609.2
1816 609.2
1817 609.2
1818 609.2
1819 609.2
1820 609.2
1821 613.2
1822 617.2
1823 621.3
1824 625.4
1825 629.6
1826 633.7
1827 637.9
1828 642.1
1829 646.4
1830 650.6
1831 654.9
1832 659.3
1833 663.6
1834 668
1835 672.4
1836 676.9
1837 681.3
1838 685.8
1839 690.4
1840 694.9
1841 699.5
1842 704.1
1843 708.8
1844 713.5
1845 718.2
1846 722.9
1847 727.7
1848 732.5
1849 737.4
1850 742.2
1851 747.1
1852 752.1
1853 757.1
1854 762.1
1855 767.1
1856 772.2
1857 777.3
1858 782.4
1859 787.6
1860 792.8
1861 798
1862 803.3
1863 808.6
1864 813.9
1865 819.3
1866 824.7
1867 830.2
1868 835.7
1869 841.2
1870 846.7
1871 852.3
1872 858
1873 863.6
1874 869.3
1875 875.1
1876 880.9
1877 886.7
1878 892.6
1879 898.5
1880 904.4
1881 910.4
1882 916.4
1883 922.4
1884 928.5
1885 934.7
1886 940.8
1887 947.1
1888 953.3
1889 959.6
1890 966
1891 972.3
1892 978.8
1893 985.2
1894 991.7
1895 998.3
1896 1005
1897 1012
1898 1018
1899 1025
1900 1032
1901 1039
1902 1045
1903 1052
1904 1059
1905 1066
1906 1073
1907 1080
1908 1088
1909 1095
1910 1102
1911 1109
1912 1117
1913 1124
1914 1141
1915 1158
1916 1175
1917 1192
1918 1210
1919 1228
1920 1246
1921 1265
1922 1284
1923 1303
1924 1322
1925 1342
1926 1362
1927 1382
1928 1403
1929 1424
1930 1445
1931 1467
1932 1488
1933 1511
1934 1533
1935 1556
1936 1579
1937 1603
1938 1626
1939 1651
1940 1675
1941 1700
1942 1726
1943 1751
1944 1777
1945 1804
1946 1831
1947 1858
1948 1886
1949 1914
1950 1942
1951 1957
1952 1972
1953 1987
1954 2002
1955 2018
1956 2033
1957 2049
1958 2064
1959 2080
1960 2096
1961 2124
1962 2150
1963 2178
1964 2212
1965 2254
1966 2299
1967 2355
1968 2475
1969 2553
1970 2631
1971 2696
1972 2936
1973 3057
1974 3423
1975 3484
1976 3410
1977 3544
1978 3723
1979 3895
1980 4368
1981 4310
1982 4187
1983 4017
1984 3969
1985 3910
1986 3988
1987 4314
1988 4592
1989 5096
1990 5465
1991 5944
1992 6485
1993 6685
1994 6514
1995 6369
1996 6319
1997 6318
1998 6319
1999 6723
2000 7343
2001 7482
2002 7629
2003 8082
2004 8191
2005 8179
2006 8364
2007 8075
2008 8187
2009 8061
2010 8158
2011 8178
2012 8368
2013 8356
2014 8418
2015 8481
2016 8544
2017 8607
2018 8671
2019 8736