Year Measure
1800 1086
1801 1086
1802 1086
1803 1086
1804 1086
1805 1086
1806 1086
1807 1086
1808 1086
1809 1086
1810 1086
1811 1086
1812 1086
1813 1086
1814 1086
1815 1086
1816 1086
1817 1086
1818 1086
1819 1086
1820 1086
1821 1112
1822 1138
1823 1165
1824 1192
1825 1221
1826 1249
1827 1279
1828 1309
1829 1340
1830 1371
1831 1404
1832 1437
1833 1471
1834 1505
1835 1541
1836 1577
1837 1614
1838 1652
1839 1691
1840 1731
1841 1772
1842 1814
1843 1857
1844 1900
1845 1945
1846 1991
1847 2038
1848 2086
1849 2135
1850 2186
1851 2237
1852 2290
1853 2344
1854 2399
1855 2456
1856 2514
1857 2573
1858 2633
1859 2696
1860 2759
1861 2824
1862 2891
1863 2959
1864 3029
1865 3100
1866 3173
1867 3248
1868 3324
1869 3403
1870 3483
1871 3479
1872 4204
1873 4154
1874 3698
1875 3102
1876 3362
1877 3390
1878 3589
1879 3113
1880 3325
1881 3085
1882 3322
1883 3828
1884 3712
1885 4103
1886 4166
1887 3621
1888 4341
1889 3857
1890 3430
1891 3658
1892 3665
1893 3893
1894 4244
1895 4102
1896 4223
1897 3983
1898 3594
1899 3611
1900 3544
1901 3567
1902 4109
1903 4177
1904 4216
1905 3728
1906 4046
1907 4404
1908 4749
1909 4722
1910 5009
1911 4723
1912 5603
1913 5287
1914 4239
1915 3946
1916 4006
1917 4340
1918 4516
1919 5007
1920 4271
1921 4394
1922 4916
1923 5063
1924 5426
1925 5091
1926 5427
1927 6065
1928 6238
1929 6145
1930 6870
1931 5591
1932 5105
1933 4393
1934 5144
1935 5360
1936 5525
1937 5530
1938 5872
1939 5897
1940 5847
1941 5882
1942 5331
1943 5320
1944 5917
1945 6011
1946 6521
1947 6888
1948 7036
1949 7193
1950 7442
1951 7914
1952 7917
1953 8207
1954 8610
1955 8548
1956 8561
1957 8518
1958 8629
1959 7762
1960 7922
1961 8044
1962 7760
1963 7698
1964 7759
1965 7762
1966 7945
1967 7540
1968 7582
1969 7972
1970 8280
1971 8194
1972 7898
1973 7945
1974 8183
1975 8659
1976 8958
1977 9007
1978 9429
1979 9957
1980 10510
1981 10650
1982 9583
1983 8967
1984 8816
1985 8891
1986 9620
1987 10320
1988 10260
1989 10320
1990 10340
1991 10560
1992 11270
1993 11540
1994 12090
1995 11760
1996 12270
1997 12780
1998 13280
1999 12830
2000 12590
2001 12090
2002 10700
2003 10880
2004 12100
2005 12830
2006 13320
2007 14150
2008 15120
2009 15440
2010 16750
2011 17640
2012 18270
2013 18980
2014 19440
2015 19950
2016 20540
2017 21210
2018 21940
2019 22700