Year Measure
1800 803.1
1801 803.9
1802 804.7
1803 805.6
1804 806.4
1805 807.2
1806 808.1
1807 808.9
1808 809.8
1809 810.6
1810 811.5
1811 812.3
1812 813.2
1813 814
1814 814.9
1815 815.7
1816 816.6
1817 817.4
1818 818.3
1819 819.1
1820 820
1821 825.2
1822 830.4
1823 835.6
1824 840.9
1825 846.3
1826 851.6
1827 857
1828 862.4
1829 867.9
1830 873.4
1831 878.9
1832 884.5
1833 890.1
1834 895.7
1835 901.4
1836 907.1
1837 912.9
1838 918.6
1839 924.5
1840 930.3
1841 936.2
1842 942.1
1843 948.1
1844 954.1
1845 960.1
1846 966.2
1847 972.3
1848 978.5
1849 984.7
1850 990.9
1851 997.2
1852 1004
1853 1010
1854 1016
1855 1023
1856 1029
1857 1036
1858 1042
1859 1049
1860 1055
1861 1062
1862 1069
1863 1076
1864 1082
1865 1089
1866 1096
1867 1103
1868 1110
1869 1117
1870 1124
1871 1131
1872 1139
1873 1146
1874 1153
1875 1160
1876 1168
1877 1175
1878 1183
1879 1190
1880 1198
1881 1205
1882 1213
1883 1220
1884 1228
1885 1236
1886 1188
1887 1389
1888 1337
1889 1243
1890 1238
1891 1134
1892 1241
1893 1406
1894 1599
1895 1480
1896 1630
1897 1602
1898 1645
1899 1746
1900 1708
1901 1751
1902 1902
1903 1771
1904 1959
1905 1734
1906 1657
1907 1592
1908 1739
1909 1805
1910 1926
1911 1780
1912 1923
1913 2020
1914 1929
1915 1985
1916 1765
1917 1550
1918 948.8
1919 818
1920 821.3
1921 751.7
1922 872.6
1923 1005
1924 1273
1925 1591
1926 1787
1927 1861
1928 1957
1929 1980
1930 2069
1931 2088
1932 2056
1933 2133
1934 2329
1935 2663
1936 2844
1937 3080
1938 3071
1939 3196
1940 3063
1941 3005
1942 2949
1943 2893
1944 2839
1945 2786
1946 2734
1947 3037
1948 3431
1949 3748
1950 4060
1951 4009
1952 4196
1953 4304
1954 4438
1955 4733
1956 5095
1957 5109
1958 5396
1959 5242
1960 5637
1961 5854
1962 5915
1963 5694
1964 6342
1965 6620
1966 6863
1967 7090
1968 7432
1969 7465
1970 7965
1971 8097
1972 8062
1973 8657
1974 8861
1975 8840
1976 9209
1977 9381
1978 9573
1979 9488
1980 9463
1981 9511
1982 9706
1983 9973
1984 10050
1985 10090
1986 10460
1987 10550
1988 10730
1989 10880
1990 10600
1991 9653
1992 8674
1993 7440
1994 5764
1995 5099
1996 4629
1997 4529
1998 4482
1999 4513
2000 4827
2001 5325
2002 5654
2003 6236
2004 7044
2005 7282
2006 7880
2007 8530
2008 8778
2009 7516
2010 7855
2011 8295
2012 8334
2013 8353