Year Measure
1764 1390
1765 1390
1766 1390
1767 1390
1768 1390
1769 1390
1770 1390
1771 1390
1772 1390
1773 1390
1774 1390
1775 1390
1776 1390
1777 1390
1778 1390
1779 1389
1780 1389
1781 1389
1782 1389
1783 1389
1784 1389
1785 1389
1786 1389
1787 1389
1788 1389
1789 1389
1790 1389
1791 1389
1792 1389
1793 1389
1794 1389
1795 1389
1796 1389
1797 1388
1798 1388
1799 1388
1800 1388
1801 1394
1802 1400
1803 1406
1804 1412
1805 1417
1806 1423
1807 1429
1808 1435
1809 1441
1810 1447
1811 1453
1812 1459
1813 1465
1814 1471
1815 1477
1816 1483
1817 1490
1818 1496
1819 1502
1820 1508
1821 1605
1822 1489
1823 1484
1824 1451
1825 1461
1826 1507
1827 1518
1828 1425
1829 1505
1830 1478
1831 1468
1832 1576
1833 1575
1834 1557
1835 1639
1836 1671
1837 1692
1838 1729
1839 1703
1840 1833
1841 1782
1842 1748
1843 1815
1844 1870
1845 1938
1846 2061
1847 2248
1848 1755
1849 1752
1850 1841
1851 1810
1852 2049
1853 2280
1854 2559
1855 2700
1856 2804
1857 2709
1858 2530
1859 2537
1860 2704
1861 2763
1862 2865
1863 2947
1864 3001
1865 2952
1866 3079
1867 3036
1868 3249
1869 3053
1870 2952
1871 3095
1872 3265
1873 3227
1874 3368
1875 3306
1876 3271
1877 3264
1878 3087
1879 3061
1880 3252
1881 3467
1882 3592
1883 3443
1884 3269
1885 3179
1886 3144
1887 3176
1888 3257
1889 3274
1890 3401
1891 3445
1892 3525
1893 3399
1894 3737
1895 3668
1896 3792
1897 3689
1898 3914
1899 4060
1900 4120
1901 3924
1902 3883
1903 4018
1904 4105
1905 4215
1906 4163
1907 4506
1908 4498
1909 4648
1910 4432
1911 4875
1912 5270
1913 5216
1914 4367
1915 3838
1916 4392
1917 4344
1918 3716
1919 4091
1920 4364
1921 4139
1922 4953
1923 5175
1924 5731
1925 5758
1926 5943
1927 5809
1928 6140
1929 6648
1930 6405
1931 6109
1932 5562
1933 5716
1934 5506
1935 5361
1936 5427
1937 5543
1938 5395
1939 5609
1940 4419
1941 4268
1942 4290
1943 4272
1944 3266
1945 4012
1946 5348
1947 5625
1948 6298
1949 6626
1950 7104
1951 7436
1952 7551
1953 7692
1954 8019
1955 8400
1956 8786
1957 9242
1958 9435
1959 9620
1960 10240
1961 10690
1962 11190
1963 11580
1964 12200
1965 12650
1966 13190
1967 13680
1968 14150
1969 15000
1970 15700
1971 16280
1972 16840
1973 17600
1974 18000
1975 17850
1976 18510
1977 19000
1978 19520
1979 20100
1980 20330
1981 20490
1982 20930
1983 21270
1984 21490
1985 21810
1986 22220
1987 22610
1988 23520
1989 24190
1990 24680
1991 24850
1992 25140
1993 24730
1994 25120
1995 25560
1996 25720
1997 26170
1998 26960
1999 27690
2000 28640
2001 28980
2002 29040
2003 29050
2004 29510
2005 29640
2006 30160
2007 30650
2008 30460
2009 29350
2010 29690
2011 30040
2012 29900
2013 29740
2014 29860
2015 30160
2016 30550
2017 30970
2018 31420