Year Measure
1800 702.1
1801 702.1
1802 702.1
1803 702.1
1804 702.1
1805 702.1
1806 702.1
1807 702.1
1808 702.1
1809 702.1
1810 702.1
1811 702.1
1812 702.1
1813 702.1
1814 702.1
1815 702.1
1816 702.1
1817 702.1
1818 702.1
1819 702.1
1820 702.1
1821 705.8
1822 709.5
1823 713.3
1824 717.1
1825 720.9
1826 724.7
1827 728.5
1828 732.3
1829 736.2
1830 740.1
1831 744
1832 748
1833 751.9
1834 755.9
1835 759.9
1836 763.9
1837 767.9
1838 772
1839 776.1
1840 780.2
1841 784.3
1842 788.4
1843 792.6
1844 796.8
1845 801
1846 805.2
1847 809.5
1848 813.8
1849 818.1
1850 822.4
1851 826.8
1852 831.1
1853 835.5
1854 839.9
1855 844.4
1856 848.8
1857 853.3
1858 857.8
1859 862.4
1860 866.9
1861 871.5
1862 876.1
1863 880.8
1864 885.4
1865 890.1
1866 894.8
1867 899.5
1868 904.3
1869 909.1
1870 913.9
1871 918.7
1872 923.5
1873 928.4
1874 933.3
1875 938.3
1876 943.2
1877 948.2
1878 953.2
1879 958.3
1880 963.3
1881 968.4
1882 973.5
1883 978.7
1884 983.9
1885 989.1
1886 994.3
1887 999.5
1888 1005
1889 1010
1890 1015
1891 1021
1892 1026
1893 1032
1894 1037
1895 1043
1896 1048
1897 1054
1898 1059
1899 1065
1900 1070
1901 1076
1902 1082
1903 1088
1904 1093
1905 1099
1906 1105
1907 1111
1908 1117
1909 1122
1910 1128
1911 1134
1912 1140
1913 1146
1914 1164
1915 1182
1916 1200
1917 1219
1918 1237
1919 1256
1920 1276
1921 1295
1922 1315
1923 1335
1924 1356
1925 1377
1926 1398
1927 1419
1928 1441
1929 1463
1930 1486
1931 1509
1932 1532
1933 1555
1934 1579
1935 1604
1936 1628
1937 1653
1938 1679
1939 1705
1940 1731
1941 1757
1942 1784
1943 1812
1944 1840
1945 1868
1946 1897
1947 1926
1948 1955
1949 1985
1950 2016
1951 2192
1952 2302
1953 2204
1954 2258
1955 2322
1956 2473
1957 2544
1958 2591
1959 2520
1960 2557
1961 2418
1962 2738
1963 2821
1964 2914
1965 2472
1966 2717
1967 2724
1968 2648
1969 2852
1970 3066
1971 3298
1972 3607
1973 3937
1974 4057
1975 4145
1976 4316
1977 4417
1978 4413
1979 4495
1980 4657
1981 4737
1982 4712
1983 4811
1984 4719
1985 4501
1986 4537
1987 4776
1988 4709
1989 5201
1990 4855
1991 4800
1992 5014
1993 5027
1994 5158
1995 5301
1996 5587
1997 5952
1998 6284
1999 6679
2000 7164
2001 7309
2002 7516
2003 7610
2004 7969
2005 8520
2006 9263
2007 9870
2008 10200
2009 10370
2010 10980
2011 11260
2012 11500
2013 11750
2014 12060
2015 12340
2016 12620
2017 12890
2018 13170
2019 13450