Year Measure
1800 975.8
1801 975.8
1802 975.8
1803 975.8
1804 975.8
1805 975.8
1806 975.8
1807 975.8
1808 975.8
1809 975.8
1810 975.8
1811 975.8
1812 975.8
1813 975.8
1814 975.8
1815 975.8
1816 975.8
1817 975.8
1818 975.8
1819 975.8
1820 975.8
1821 975.8
1822 975.8
1823 975.8
1824 975.8
1825 975.8
1826 975.9
1827 975.9
1828 975.9
1829 975.9
1830 975.9
1831 975.9
1832 975.9
1833 975.9
1834 975.9
1835 975.9
1836 975.9
1837 975.9
1838 975.9
1839 975.9
1840 975.9
1841 975.9
1842 975.9
1843 975.9
1844 975.9
1845 975.9
1846 975.9
1847 975.9
1848 975.9
1849 975.9
1850 975.9
1851 975.9
1852 976
1853 976
1854 976
1855 976
1856 976
1857 976
1858 976
1859 976
1860 976
1861 976
1862 976
1863 976
1864 976
1865 976
1866 976
1867 976
1868 976
1869 976
1870 976
1871 979.5
1872 982.9
1873 986.4
1874 989.9
1875 993.4
1876 996.9
1877 1000
1878 1004
1879 1008
1880 1011
1881 1015
1882 1018
1883 1022
1884 1026
1885 1029
1886 1033
1887 1036
1888 1040
1889 1044
1890 1048
1891 1051
1892 1055
1893 1059
1894 1062
1895 1066
1896 1070
1897 1074
1898 1078
1899 1081
1900 1085
1901 1089
1902 1089
1903 1291
1904 1229
1905 994.4
1906 1048
1907 1160
1908 1197
1909 1336
1910 1359
1911 1270
1912 1195
1913 1299
1914 1252
1915 1304
1916 1405
1917 1576
1918 1506
1919 1547
1920 1527
1921 1575
1922 1744
1923 1776
1924 1906
1925 1978
1926 1973
1927 1937
1928 1951
1929 2011
1930 2040
1931 2016
1932 2085
1933 1976
1934 2031
1935 2191
1936 2267
1937 2238
1938 2329
1939 2237
1940 2032
1941 1903
1942 1946
1943 1764
1944 1505
1945 822.7
1946 889.9
1947 1025
1948 1270
1949 1414
1950 1685
1951 1750
1952 1902
1953 2011
1954 2129
1955 2216
1956 2217
1957 2310
1958 2381
1959 2464
1960 2586
1961 2672
1962 2828
1963 3117
1964 3431
1965 3597
1966 3865
1967 4177
1968 4495
1969 4807
1970 5183
1971 5799
1972 6575
1973 7188
1974 6798
1975 7111
1976 8224
1977 8988
1978 9966
1979 10440
1980 10700
1981 11230
1982 11570
1983 12570
1984 13670
1985 14040
1986 16130
1987 17600
1988 17930
1989 19440
1990 20430
1991 22000
1992 23210
1993 24600
1994 26090
1995 27310
1996 28870
1997 30610
1998 31880
1999 32850
2000 34200
2001 32910
2002 34260
2003 34840
2004 36030
2005 36820
2006 37660
2007 38760
2008 36530
2009 36490
2010 39080
2011 39060
2012 39480
2013 40210
2014 41380
2015 42880
2016 44570
2017 46390
2018 48340
2019 50390