Year Measure
1800 1341
1801 1349
1802 1358
1803 1366
1804 1375
1805 1383
1806 1392
1807 1400
1808 1409
1809 1418
1810 1427
1811 1435
1812 1444
1813 1453
1814 1462
1815 1471
1816 1481
1817 1490
1818 1499
1819 1508
1820 1518
1821 1533
1822 1549
1823 1564
1824 1580
1825 1596
1826 1612
1827 1628
1828 1645
1829 1661
1830 1678
1831 1704
1832 1729
1833 1756
1834 1782
1835 1809
1836 1836
1837 1864
1838 1892
1839 1921
1840 1950
1841 1977
1842 2003
1843 2031
1844 2058
1845 2086
1846 2114
1847 2143
1848 2172
1849 2201
1850 2231
1851 2251
1852 2270
1853 2290
1854 2310
1855 2331
1856 2351
1857 2372
1858 2392
1859 2413
1860 2434
1861 2472
1862 2511
1863 2551
1864 2591
1865 2631
1866 2672
1867 2714
1868 2757
1869 2800
1870 2844
1871 2944
1872 2862
1873 3091
1874 3111
1875 2994
1876 2754
1877 2899
1878 2748
1879 2962
1880 3047
1881 3423
1882 3539
1883 3508
1884 3744
1885 3479
1886 3483
1887 3558
1888 3774
1889 3758
1890 3991
1891 4042
1892 3979
1893 3916
1894 4062
1895 3979
1896 3841
1897 4215
1898 4336
1899 4692
1900 4886
1901 5197
1902 5590
1903 5594
1904 5504
1905 5977
1906 6455
1907 6503
1908 5995
1909 6460
1910 6823
1911 7069
1912 7346
1913 7463
1914 6755
1915 7104
1916 7797
1917 8056
1918 7452
1919 6745
1920 6480
1921 5634
1922 6366
1923 6672
1924 6674
1925 7284
1926 7547
1927 8134
1928 8679
1929 8501
1930 8073
1931 6719
1932 6161
1933 5656
1934 6194
1935 6630
1936 6921
1937 7507
1938 7629
1939 8002
1940 9009
1941 10150
1942 11800
1943 12190
1944 12490
1945 11970
1946 11630
1947 11900
1948 11860
1949 11850
1950 12240
1951 12640
1952 13150
1953 13400
1954 12920
1955 13760
1956 14520
1957 14440
1958 14320
1959 14560
1960 14690
1961 14820
1962 15570
1963 16050
1964 16780
1965 17580
1966 18370
1967 18590
1968 19260
1969 19990
1970 20220
1971 21080
1972 21940
1973 23220
1974 23840
1975 24030
1976 25010
1977 25550
1978 26310
1979 27140
1980 27150
1981 27640
1982 26480
1983 26980
1984 28250
1985 29510
1986 29980
1987 30790
1988 31870
1989 32070
1990 31670
1991 30640
1992 30460
1993 30750
1994 31850
1995 32340
1996 32470
1997 33480
1998 34500
1999 36030
2000 37520
2001 37670
2002 38540
2003 38900
2004 39720
2005 40570
2006 41220
2007 41630
2008 41610
2009 39950
2010 40730
2011 41330
2012 41560
2013 41900
2014 42400
2015 42960
2016 43540
2017 44090
2018 44590
2019 45070