Year Measure
1800 1521
1801 1521
1802 1521
1803 1521
1804 1521
1805 1521
1806 1521
1807 1521
1808 1521
1809 1521
1810 1521
1811 1521
1812 1521
1813 1521
1814 1521
1815 1521
1816 1521
1817 1521
1818 1521
1819 1521
1820 1521
1821 1531
1822 1541
1823 1551
1824 1562
1825 1572
1826 1582
1827 1593
1828 1603
1829 1614
1830 1625
1831 1635
1832 1646
1833 1657
1834 1668
1835 1679
1836 1690
1837 1701
1838 1713
1839 1724
1840 1735
1841 1747
1842 1758
1843 1770
1844 1782
1845 1793
1846 1805
1847 1817
1848 1829
1849 1841
1850 1853
1851 1866
1852 1878
1853 1890
1854 1903
1855 1915
1856 1928
1857 1941
1858 1954
1859 1967
1860 1980
1861 1993
1862 2006
1863 2019
1864 2032
1865 2046
1866 2059
1867 2073
1868 2087
1869 2100
1870 2114
1871 2128
1872 2142
1873 2157
1874 2171
1875 2185
1876 2200
1877 2214
1878 2229
1879 2243
1880 2258
1881 2273
1882 2288
1883 2303
1884 2319
1885 2334
1886 2349
1887 2365
1888 2380
1889 2396
1890 2412
1891 2428
1892 2444
1893 2460
1894 2476
1895 2493
1896 2509
1897 2526
1898 2543
1899 2559
1900 2576
1901 2593
1902 2610
1903 2628
1904 2645
1905 2662
1906 2680
1907 2698
1908 2716
1909 2734
1910 2752
1911 2770
1912 2788
1913 2807
1914 2907
1915 3012
1916 3120
1917 3233
1918 3349
1919 3469
1920 3594
1921 3723
1922 3857
1923 3996
1924 4140
1925 4289
1926 4443
1927 4603
1928 4768
1929 4940
1930 5118
1931 5302
1932 5492
1933 5690
1934 5894
1935 6106
1936 6326
1937 6554
1938 6789
1939 7034
1940 7287
1941 7549
1942 7820
1943 8101
1944 8393
1945 8695
1946 9007
1947 9331
1948 9667
1949 10010
1950 10370
1951 10750
1952 11130
1953 11540
1954 11950
1955 12380
1956 12830
1957 13290
1958 13760
1959 14260
1960 14770
1961 15550
1962 16320
1963 17140
1964 18030
1965 19010
1966 19840
1967 20850
1968 21750
1969 22900
1970 20960
1971 20760
1972 19590
1973 20660
1974 16880
1975 14100
1976 14530
1977 15520
1978 17350
1979 21410
1980 22310
1981 21200
1982 22060
1983 23060
1984 23130
1985 23610
1986 23770
1987 24220
1988 24340
1989 24470
1990 23650
1991 22240
1992 20980
1993 20640
1994 20890
1995 21420
1996 21940
1997 22660
1998 23830
1999 24420
2000 24530
2001 24400
2002 24620
2003 24550
2004 24550
2005 24850
2006 25170
2007 25230
2008 24350
2009 22900
2010 22690
2011 22810
2012 22970
2013 23140
2014 23410
2015 23800
2016 24200
2017 24530
2018 24860
2019 25150