Year Measure
1800 616.2
1801 616.2
1802 616.2
1803 616.2
1804 616.2
1805 616.2
1806 616.2
1807 616.2
1808 616.2
1809 616.2
1810 616.2
1811 616.2
1812 616.2
1813 616.2
1814 616.2
1815 616.2
1816 616.2
1817 616.2
1818 616.2
1819 616.2
1820 616.2
1821 618.2
1822 620.2
1823 622.3
1824 624.3
1825 626.3
1826 628.3
1827 630.4
1828 632.4
1829 634.5
1830 636.5
1831 638.6
1832 640.7
1833 642.8
1834 644.8
1835 646.9
1836 649
1837 651.2
1838 653.3
1839 655.4
1840 657.5
1841 659.7
1842 661.8
1843 663.9
1844 666.1
1845 668.3
1846 670.4
1847 672.6
1848 674.8
1849 677
1850 679.2
1851 681.4
1852 683.6
1853 685.8
1854 688
1855 690.3
1856 692.5
1857 694.8
1858 697
1859 699.3
1860 701.6
1861 703.8
1862 706.1
1863 708.4
1864 710.7
1865 713
1866 715.3
1867 717.7
1868 720
1869 722.3
1870 724.7
1871 727
1872 729.4
1873 731.8
1874 734.1
1875 736.5
1876 738.9
1877 741.3
1878 743.7
1879 746.1
1880 748.6
1881 751
1882 753.4
1883 755.9
1884 758.3
1885 760.8
1886 763.3
1887 765.7
1888 768.2
1889 770.7
1890 773.2
1891 775.7
1892 778.3
1893 780.8
1894 783.3
1895 785.9
1896 788.4
1897 791
1898 793.5
1899 796.1
1900 798.7
1901 801.3
1902 803.9
1903 806.5
1904 809.1
1905 811.8
1906 814.4
1907 817
1908 819.7
1909 822.4
1910 825
1911 827.7
1912 830.4
1913 833.1
1914 843
1915 853.1
1916 863.2
1917 873.5
1918 883.9
1919 894.4
1920 905.1
1921 915.9
1922 926.8
1923 937.8
1924 949
1925 960.3
1926 971.7
1927 983.3
1928 995
1929 1007
1930 1019
1931 1031
1932 1043
1933 1056
1934 1068
1935 1081
1936 1094
1937 1107
1938 1120
1939 1133
1940 1147
1941 1161
1942 1174
1943 1188
1944 1203
1945 1217
1946 1231
1947 1246
1948 1261
1949 1276
1950 1291
1951 1306
1952 1322
1953 1338
1954 1354
1955 1370
1956 1386
1957 1403
1958 1419
1959 1436
1960 1453
1961 1471
1962 1488
1963 1506
1964 1524
1965 1542
1966 1560
1967 1579
1968 1598
1969 1617
1970 1636
1971 1656
1972 1675
1973 1695
1974 2208
1975 2041
1976 2016
1977 1936
1978 2208
1979 2228
1980 1920
1981 1949
1982 2106
1983 2495
1984 2606
1985 2573
1986 2462
1987 2415
1988 2371
1989 2390
1990 2438
1991 2655
1992 2558
1993 2594
1994 2587
1995 2641
1996 2771
1997 2853
1998 2924
1999 2779
2000 2795
2001 2656
2002 2403
2003 2415
2004 2481
2005 2583
2006 2739
2007 2816
2008 2931
2009 2960
2010 2941
2011 2916
2012 2901
2013 2803
2014 2837
2015 2898
2016 2961
2017 3019
2018 3076
2019 3127