Year Measure
1800 898.5
1801 901.2
1802 903.9
1803 906.6
1804 909.3
1805 912
1806 914.7
1807 917.4
1808 920.2
1809 922.9
1810 925.7
1811 928.4
1812 931.2
1813 934
1814 936.8
1815 939.6
1816 942.4
1817 945.2
1818 948
1819 950.8
1820 953.7
1821 956.5
1822 959.4
1823 962.2
1824 965.1
1825 968
1826 970.9
1827 973.8
1828 976.7
1829 979.6
1830 982.5
1831 985.5
1832 988.4
1833 991.3
1834 994.3
1835 997.3
1836 1000
1837 1003
1838 1006
1839 1009
1840 1012
1841 1015
1842 1018
1843 1021
1844 1024
1845 1027
1846 1031
1847 1034
1848 1037
1849 1040
1850 1043
1851 1046
1852 1049
1853 1052
1854 1055
1855 1059
1856 1062
1857 1065
1858 1068
1859 1071
1860 1074
1861 1078
1862 1081
1863 1084
1864 1087
1865 1091
1866 1094
1867 1097
1868 1100
1869 1104
1870 1107
1871 1110
1872 1114
1873 1117
1874 1120
1875 1124
1876 1127
1877 1130
1878 1134
1879 1137
1880 1140
1881 1144
1882 1147
1883 1151
1884 1154
1885 1158
1886 1161
1887 1164
1888 1168
1889 1171
1890 1175
1891 1178
1892 1182
1893 1185
1894 1189
1895 1193
1896 1196
1897 1200
1898 1203
1899 1207
1900 1210
1901 1221
1902 1231
1903 1241
1904 1252
1905 1262
1906 1273
1907 1283
1908 1294
1909 1305
1910 1316
1911 1327
1912 1338
1913 1349
1914 1360
1915 1372
1916 1383
1917 1395
1918 1407
1919 1418
1920 1430
1921 1442
1922 1454
1923 1467
1924 1479
1925 1491
1926 1504
1927 1516
1928 1529
1929 1542
1930 1555
1931 1568
1932 1581
1933 1594
1934 1607
1935 1621
1936 1635
1937 1648
1938 1662
1939 1676
1940 1690
1941 1704
1942 1718
1943 1733
1944 1747
1945 1762
1946 1777
1947 1792
1948 1807
1949 1822
1950 1837
1951 2100
1952 1926
1953 1790
1954 1885
1955 1941
1956 1983
1957 2013
1958 1960
1959 1841
1960 1934
1961 1808
1962 1897
1963 1917
1964 1968
1965 1998
1966 2165
1967 2184
1968 2113
1969 2174
1970 1993
1971 2049
1972 2076
1973 2106
1974 2130
1975 2045
1976 2050
1977 2156
1978 2264
1979 2262
1980 2300
1981 2297
1982 2292
1983 2237
1984 2192
1985 2203
1986 2276
1987 2325
1988 2384
1989 2411
1990 2429
1991 2382
1992 2288
1993 2224
1994 2215
1995 2246
1996 2276
1997 2222
1998 2239
1999 2229
2000 2183
2001 2222
2002 2177
2003 2182
2004 2234
2005 2306
2006 2389
2007 2492
2008 2466
2009 2469
2010 2544
2011 2585
2012 2631
2013 2704
2014 2797
2015 2897
2016 3002
2017 3113
2018 3230
2019 3355