Year Measure
1800 730
1801 730.6
1802 731.2
1803 731.8
1804 732.4
1805 733
1806 733.6
1807 734.2
1808 734.7
1809 735.3
1810 735.9
1811 736.5
1812 737.1
1813 737.7
1814 738.3
1815 738.9
1816 739.5
1817 740.1
1818 740.7
1819 741.3
1820 741.9
1821 742.5
1822 743.1
1823 743.7
1824 744.3
1825 744.9
1826 745.5
1827 746.1
1828 746.8
1829 747.4
1830 748
1831 748.6
1832 749.2
1833 749.8
1834 750.4
1835 751
1836 751.6
1837 752.2
1838 752.8
1839 753.4
1840 754
1841 754.7
1842 755.3
1843 755.9
1844 756.5
1845 757.1
1846 757.7
1847 758.3
1848 759
1849 759.6
1850 760.2
1851 760.8
1852 761.4
1853 762
1854 762.7
1855 763.3
1856 763.9
1857 764.5
1858 765.1
1859 765.7
1860 766.4
1861 767
1862 767.6
1863 768.2
1864 768.9
1865 769.5
1866 770.1
1867 770.7
1868 771.4
1869 772
1870 772.6
1871 773.2
1872 773.9
1873 774.5
1874 775.1
1875 775.7
1876 776.4
1877 777
1878 777.6
1879 778.3
1880 778.9
1881 779.5
1882 780.2
1883 780.8
1884 781.4
1885 782.1
1886 782.7
1887 783.3
1888 784
1889 784.6
1890 785.2
1891 785.9
1892 786.5
1893 787.1
1894 787.8
1895 788.4
1896 789.1
1897 789.7
1898 790.3
1899 791
1900 791.6
1901 792.3
1902 792.9
1903 793.5
1904 794.2
1905 794.8
1906 795.5
1907 796.1
1908 796.8
1909 797.4
1910 798.1
1911 798.7
1912 799.4
1913 800
1914 805.1
1915 810.3
1916 815.5
1917 820.7
1918 826
1919 831.2
1920 836.6
1921 841.9
1922 847.3
1923 852.7
1924 858.2
1925 863.7
1926 869.2
1927 874.8
1928 880.4
1929 886
1930 891.7
1931 897.4
1932 903.2
1933 909
1934 914.8
1935 920.6
1936 926.5
1937 932.5
1938 938.4
1939 944.5
1940 950.5
1941 956.6
1942 962.7
1943 968.9
1944 975.1
1945 981.3
1946 987.6
1947 993.9
1948 1000
1949 1007
1950 1013
1951 1053
1952 1066
1953 1086
1954 1127
1955 1142
1956 1161
1957 1181
1958 1190
1959 1234
1960 1225
1961 1257
1962 1286
1963 1308
1964 1142
1965 1043
1966 1166
1967 1206
1968 1200
1969 1027
1970 1091
1971 1104
1972 1264
1973 1099
1974 1072
1975 1154
1976 1032
1977 1051
1978 999.5
1979 872.2
1980 839.6
1981 869.1
1982 890.3
1983 796.4
1984 834
1985 920.2
1986 898.3
1987 979.9
1988 962.2
1989 950.1
1990 929.6
1991 920.6
1992 813.4
1993 816.6
1994 644.1
1995 637.3
1996 648.4
1997 612.7
1998 606.9
1999 604.9
2000 603.1
2001 603
2002 606.8
2003 611.5
2004 613.6
2005 615.8
2006 614.6
2007 614.8
2008 614.9
2009 614.7
2010 614
2011 614
2012 616
2013 619