Year Measure
1790 1068
1791 1078
1792 918.5
1793 1012
1794 1008
1795 1004
1796 1000
1797 996.1
1798 992.1
1799 988.1
1800 984.1
1801 980.2
1802 976.2
1803 972.3
1804 968.4
1805 917.7
1806 918
1807 995.2
1808 871.4
1809 851.5
1810 941.2
1811 746.5
1812 756.1
1813 952.1
1814 964.1
1815 801.1
1816 835.2
1817 868.3
1818 921.1
1819 796.7
1820 787.2
1821 929
1822 866.7
1823 874.1
1824 881.5
1825 889
1826 896.6
1827 900.7
1828 904.8
1829 908.9
1830 865.4
1831 824
1832 818.6
1833 813.3
1834 807.9
1835 802.6
1836 797.4
1837 792.1
1838 786.9
1839 781.8
1840 776.6
1841 758.4
1842 740.6
1843 723.2
1844 696.2
1845 670.2
1846 645.2
1847 621.1
1848 643.4
1849 666.6
1850 690.6
1851 817.7
1852 857.4
1853 920.7
1854 895
1855 961.1
1856 774.1
1857 916.4
1858 801.8
1859 827.5
1860 857.3
1861 807.1
1862 594.5
1863 635.1
1864 886.4
1865 652.9
1866 678.5
1867 813.3
1868 831.5
1869 831.4
1870 893
1871 905.7
1872 1350
1873 1177
1874 1135
1875 1280
1876 1448
1877 1381
1878 1363
1879 1529
1880 1788
1881 1709
1882 1638
1883 1274
1884 1168
1885 997.9
1886 1192
1887 1376
1888 1570
1889 1572
1890 1602
1891 1688
1892 1666
1893 1670
1894 1642
1895 1912
1896 2021
1897 1912
1898 2322
1899 2064
1900 1469
1901 1599
1902 1931
1903 2618
1904 2647
1905 2859
1906 3123
1907 3101
1908 2462
1909 2609
1910 2640
1911 2643
1912 2647
1913 2650
1914 2654
1915 2657
1916 2660
1917 2664
1918 2667
1919 2710
1920 2752
1921 2796
1922 2840
1923 2885
1924 2931
1925 3124
1926 3206
1927 3268
1928 3516
1929 3433
1930 3241
1931 3062
1932 2945
1933 3264
1934 3617
1935 4007
1936 4385
1937 4674
1938 4486
1939 4709
1940 4920
1941 5050
1942 5105
1943 5119
1944 5195
1945 5225
1946 5300
1947 5247
1948 5536
1949 5495
1950 5814
1951 5942
1952 6007
1953 6135
1954 6337
1955 6491
1956 6683
1957 6768
1958 6741
1959 6869
1960 6974
1961 7091
1962 7291
1963 7617
1964 7912
1965 8162
1966 8291
1967 8623
1968 8759
1969 9050
1970 9277
1971 9484
1972 9424
1973 9575
1974 9860
1975 9795
1976 9786
1977 9529
1978 9573
1979 9706
1980 10070
1981 10270
1982 9915
1983 9431
1984 9600
1985 9188
1986 8972
1987 8938
1988 9091
1989 9073
1990 8791
1991 8520
1992 8174
1993 8103
1994 8220
1995 8362
1996 8607
1997 8720
1998 8644
1999 8736
2000 8990
2001 9133
2002 9364
2003 9539
2004 9876
2005 10300
2006 10770
2007 11270
2008 11580
2009 11340
2010 11650
2011 11910
2012 12040
2013 12110
2014 12220
2015 12380
2016 12600
2017 12810
2018 13020
2019 13240