Year Measure
1800 963.6
1801 963.6
1802 963.6
1803 963.6
1804 963.6
1805 963.6
1806 963.6
1807 963.6
1808 963.6
1809 963.6
1810 963.6
1811 963.6
1812 963.6
1813 963.6
1814 963.6
1815 963.6
1816 963.6
1817 963.6
1818 963.6
1819 963.6
1820 963.6
1821 967.5
1822 971.4
1823 975.3
1824 979.2
1825 983.1
1826 987.1
1827 991
1828 995
1829 999
1830 1003
1831 1007
1832 1011
1833 1015
1834 1019
1835 1023
1836 1027
1837 1032
1838 1036
1839 1040
1840 1044
1841 1048
1842 1052
1843 1057
1844 1061
1845 1065
1846 1069
1847 1074
1848 1078
1849 1082
1850 1087
1851 1091
1852 1095
1853 1100
1854 1104
1855 1109
1856 1113
1857 1118
1858 1122
1859 1127
1860 1131
1861 1136
1862 1140
1863 1145
1864 1149
1865 1154
1866 1159
1867 1163
1868 1168
1869 1173
1870 1177
1871 1187
1872 1196
1873 1206
1874 1215
1875 1225
1876 1234
1877 1244
1878 1254
1879 1264
1880 1274
1881 1284
1882 1294
1883 1305
1884 1315
1885 1325
1886 1336
1887 1346
1888 1357
1889 1368
1890 1379
1891 1390
1892 1401
1893 1412
1894 1423
1895 1434
1896 1446
1897 1457
1898 1469
1899 1480
1900 1492
1901 1504
1902 1516
1903 1528
1904 1540
1905 1552
1906 1564
1907 1577
1908 1589
1909 1602
1910 1615
1911 1627
1912 1640
1913 1653
1914 1677
1915 1702
1916 1726
1917 1752
1918 1777
1919 1803
1920 1829
1921 1856
1922 1882
1923 1910
1924 1938
1925 1966
1926 1994
1927 2023
1928 2053
1929 2082
1930 2113
1931 2143
1932 2174
1933 2206
1934 2238
1935 2271
1936 2304
1937 2337
1938 2371
1939 2405
1940 2440
1941 2476
1942 2512
1943 2548
1944 2585
1945 2623
1946 2661
1947 2699
1948 2739
1949 2778
1950 2819
1951 2939
1952 3065
1953 3196
1954 3329
1955 3467
1956 3614
1957 3759
1958 3919
1959 4073
1960 4228
1961 4176
1962 4902
1963 4988
1964 4865
1965 4765
1966 4885
1967 7913
1968 13990
1969 17110
1970 17180
1971 16810
1972 17800
1973 14830
1974 16020
1975 19300
1976 20800
1977 19860
1978 18480
1979 18290
1980 18420
1981 20460
1982 21720
1983 24190
1984 27030
1985 29610
1986 29140
1987 30370
1988 30180
1989 30340
1990 29310
1991 29850
1992 31040
1993 31650
1994 31860
1995 32750
1996 33420
1997 35400
1998 36450
1999 36390
2000 38000
2001 39990
2002 39790
2003 38560
2004 38660
2005 39270
2006 40900
2007 43430
2008 48540
2009 47790
2010 47950
2011 46430
2012 47250
2013 48110
2014 48200
2015 48260
2016 48640
2017 49050
2018 49320
2019 49610