Year Measure 1820 1529 1821 1547 1822 1565 1823 1584 1824 1602 1825 1621 1826 1640 1827 1659 1828 1679 1829 1698 1830 1718 1831 1739 1832 1759 1833 1780 1834 1801 1835 1822 1836 1843 1837 1865 1838 1887 1839 1909 1840 1931 1841 1954 1842 1977 1843 2000 1844 2023 1845 2047 1846 2071 1847 2096 1848 2120 1849 2145 1850 2170 1851 2196 1852 2221 1853 2248 1854 2274 1855 2301 1856 2328 1857 2355 1858 2383 1859 2411 1860 2439 1861 2467 1862 2496 1863 2526 1864 2555 1865 2585 1866 2616 1867 2646 1868 2677 1869 2709 1870 2741 1871 2773 1872 2805 1873 2838 1874 2872 1875 2905 1876 2940 1877 2974 1878 3009 1879 3044 1880 3080 1881 3116 1882 3153 1883 3190 1884 3227 1885 3265 1886 3303 1887 3342 1888 3381 1889 3421 1890 3461 1891 3502 1892 3543 1893 3585 1894 3627 1895 3669 1896 3712 1897 3756 1898 3800 1899 3845 1900 3890 1901 3935 1902 3982 1903 4028 1904 4076 1905 4123 1906 4172 1907 4221 1908 4270 1909 4321 1910 4371 1911 4423 1912 4475 1913 4527 1914 4705 1915 4889 1916 5081 1917 5280 1918 5487 1919 5702 1920 5926 1921 6159 1922 6400 1923 6651 1924 6912 1925 7183 1926 7465 1927 7758 1928 8062 1929 8378 1930 8707 1931 9048 1932 9403 1933 9772 1934 10160 1935 10550 1936 10970 1937 11400 1938 11840 1939 12310 1940 12790 1941 13290 1942 13820 1943 14360 1944 14920 1945 15510 1946 16110 1947 16750 1948 17400 1949 18080 1950 18790 1951 17490 1952 18500 1953 19020 1954 18680 1955 19400 1956 20270 1957 21370 1958 21420 1959 21360 1960 22060 1961 22750 1962 22870 1963 22970 1964 24890 1965 24980 1966 24970 1967 24740 1968 25810 1969 28540 1970 28790 1971 29270 1972 30840 1973 33030 1974 34140 1975 31580 1976 32170 1977 32650 1978 33830 1979 34720 1980 34890 1981 34640 1982 34970 1983 36000 1984 38230 1985 39300 1986 43070 1987 44570 1988 48260 1989 52600 1990 54840 1991 59080 1992 59210 1993 60760 1994 62350 1995 62190 1996 63280 1997 67950 1998 72040 1999 76640 2000 82540 2001 82550 2002 83180 2003 84330 2004 86880 2005 90410 2006 93420 2007 97960 2008 95550 2009 90000 2010 90910 2011 90300 2012 88090 2013 88090 2014 88200 2015 88120 2016 88130 2017 88360 2018 88530 2019 88760