Year Measure
1800 797.3
1801 797.3
1802 797.3
1803 797.3
1804 797.3
1805 797.3
1806 797.3
1807 797.3
1808 797.3
1809 797.3
1810 797.3
1811 797.3
1812 797.3
1813 797.3
1814 797.3
1815 797.3
1816 797.3
1817 797.3
1818 797.3
1819 797.3
1820 797.3
1821 798.3
1822 799.3
1823 800.4
1824 801.4
1825 802.4
1826 803.5
1827 804.5
1828 805.6
1829 806.6
1830 807.6
1831 808.7
1832 809.7
1833 810.8
1834 811.8
1835 812.9
1836 813.9
1837 815
1838 816
1839 817.1
1840 818.1
1841 819.2
1842 820.2
1843 821.3
1844 822.4
1845 823.4
1846 824.5
1847 825.5
1848 826.6
1849 827.7
1850 828.7
1851 829.8
1852 830.9
1853 832
1854 833
1855 834.1
1856 835.2
1857 836.3
1858 837.3
1859 838.4
1860 839.5
1861 840.6
1862 841.7
1863 842.8
1864 843.9
1865 844.9
1866 846
1867 847.1
1868 848.2
1869 849.3
1870 850.4
1871 861.3
1872 872.3
1873 883.5
1874 894.8
1875 906.2
1876 917.8
1877 929.5
1878 941.4
1879 953.5
1880 965.7
1881 978
1882 990.5
1883 1003
1884 1016
1885 1029
1886 1042
1887 1056
1888 1069
1889 1083
1890 1097
1891 1100
1892 1103
1893 1107
1894 1110
1895 1113
1896 1117
1897 1120
1898 1124
1899 1127
1900 1130
1901 1134
1902 1137
1903 1141
1904 1144
1905 1148
1906 1151
1907 1155
1908 1158
1909 1162
1910 1165
1911 1169
1912 1172
1913 1176
1914 1172
1915 1167
1916 1163
1917 1159
1918 1155
1919 1151
1920 1147
1921 1142
1922 1138
1923 1134
1924 1130
1925 1126
1926 1122
1927 1118
1928 1114
1929 1110
1930 1115
1931 1120
1932 1125
1933 1130
1934 1135
1935 1140
1936 1146
1937 1151
1938 1156
1939 1155
1940 1154
1941 1153
1942 1152
1943 1151
1944 1149
1945 1148
1946 1147
1947 1146
1948 1145
1949 1144
1950 1143
1951 1187
1952 1216
1953 1308
1954 1257
1955 1322
1956 1300
1957 1273
1958 1278
1959 1388
1960 1508
1961 1538
1962 1608
1963 1686
1964 1747
1965 1829
1966 1975
1967 2078
1968 2184
1969 2288
1970 2370
1971 2412
1972 2445
1973 2621
1974 2672
1975 2740
1976 2925
1977 3146
1978 3387
1979 3491
1980 3573
1981 3712
1982 3839
1983 3983
1984 4142
1985 4266
1986 4434
1987 4785
1988 5343
1989 5910
1990 6481
1991 6943
1992 7407
1993 7925
1994 8530
1995 9200
1996 9628
1997 9389
1998 8316
1999 8609
2000 8949
2001 9074
2002 9486
2003 10060
2004 10620
2005 11020
2006 11510
2007 12050
2008 12280
2009 11960
2010 12830
2011 12800
2012 13570
2013 13890
2014 14170
2015 14640
2016 15270
2017 15930
2018 16580
2019 17250