Year Measure
1800 1073
1801 1073
1802 1073
1803 1073
1804 1073
1805 1073
1806 1073
1807 1073
1808 1073
1809 1073
1810 1073
1811 1073
1812 1073
1813 1073
1814 1073
1815 1073
1816 1073
1817 1073
1818 1073
1819 1073
1820 1073
1821 1074
1822 1075
1823 1077
1824 1078
1825 1079
1826 1080
1827 1081
1828 1082
1829 1084
1830 1085
1831 1086
1832 1087
1833 1088
1834 1090
1835 1091
1836 1092
1837 1093
1838 1094
1839 1096
1840 1097
1841 1098
1842 1099
1843 1100
1844 1102
1845 1103
1846 1104
1847 1105
1848 1107
1849 1108
1850 1109
1851 1110
1852 1111
1853 1113
1854 1114
1855 1115
1856 1116
1857 1118
1858 1119
1859 1120
1860 1121
1861 1122
1862 1124
1863 1125
1864 1126
1865 1127
1866 1129
1867 1130
1868 1131
1869 1132
1870 1134
1871 1144
1872 1154
1873 1165
1874 1176
1875 1186
1876 1197
1877 1208
1878 1219
1879 1230
1880 1241
1881 1253
1882 1264
1883 1276
1884 1287
1885 1299
1886 1311
1887 1323
1888 1335
1889 1347
1890 1359
1891 1372
1892 1384
1893 1397
1894 1409
1895 1422
1896 1435
1897 1448
1898 1462
1899 1475
1900 1488
1901 1502
1902 1516
1903 1529
1904 1543
1905 1557
1906 1572
1907 1586
1908 1600
1909 1615
1910 1630
1911 1645
1912 1660
1913 1675
1914 1629
1915 1585
1916 1542
1917 1500
1918 1530
1919 1560
1920 1591
1921 1623
1922 1655
1923 1661
1924 1666
1925 1672
1926 1678
1927 1683
1928 1689
1929 1695
1930 1664
1931 1634
1932 1604
1933 1575
1934 1546
1935 1518
1936 1490
1937 1510
1938 1531
1939 1552
1940 1574
1941 1595
1942 1617
1943 1639
1944 1662
1945 1685
1946 1708
1947 1731
1948 1755
1949 1779
1950 1804
1951 1695
1952 2086
1953 2309
1954 2586
1955 2276
1956 2627
1957 2716
1958 2276
1959 2293
1960 2264
1961 2227
1962 2955
1963 2598
1964 2917
1965 2831
1966 2523
1967 2600
1968 2618
1969 3032
1970 2601
1971 2763
1972 3339
1973 2951
1974 3541
1975 4093
1976 4394
1977 4198
1978 4417
1979 4428
1980 4793
1981 5071
1982 5000
1983 4898
1984 4540
1985 4661
1986 4290
1987 4238
1988 4657
1989 3750
1990 3809
1991 3991
1992 4399
1993 4498
1994 4693
1995 4894
1996 5246
1997 5385
1998 5620
1999 5291
2000 5188
2001 5232
2002 5474
2003 5341
2004 5546
2005 5738
2006 5888
2007 6094
2008 6246
2009 6497
2010 6603
2011 6358
2012 6432
2013 5464