Year Measure 1764 2282 1765 2285 1766 2289 1767 2293 1768 2297 1769 2301 1770 2305 1771 2309 1772 2313 1773 2317 1774 2321 1775 2325 1776 2329 1777 2332 1778 2336 1779 2340 1780 2344 1781 2362 1782 2379 1783 2397 1784 2415 1785 2432 1786 2450 1787 2469 1788 2487 1789 2505 1790 2524 1791 2542 1792 2561 1793 2580 1794 2599 1795 2619 1796 2638 1797 2657 1798 2677 1799 2697 1800 2717 1801 2737 1802 2741 1803 2744 1804 2748 1805 2751 1806 2755 1807 2758 1808 2762 1809 2766 1810 2769 1811 2773 1812 2776 1813 2780 1814 2784 1815 2787 1816 2791 1817 2794 1818 2798 1819 2802 1820 2805 1821 2809 1822 2813 1823 2816 1824 2820 1825 2824 1826 2827 1827 2831 1828 2835 1829 2838 1830 2842 1831 2932 1832 2862 1833 2852 1834 2927 1835 3042 1836 3111 1837 3029 1838 3151 1839 3255 1840 3120 1841 3014 1842 2909 1843 2924 1844 3060 1845 3182 1846 3352 1847 3382 1848 3460 1849 3542 1850 3524 1851 3693 1852 3724 1853 3823 1854 3879 1855 3818 1856 4040 1857 4066 1858 4029 1859 4085 1860 4129 1861 4192 1862 4172 1863 4157 1864 4221 1865 4300 1866 4316 1867 4223 1868 4305 1869 4281 1870 4490 1871 4689 1872 4671 1873 4735 1874 4766 1875 4833 1876 4828 1877 4821 1878 4789 1879 4718 1880 4894 1881 5022 1882 5127 1883 5128 1884 5097 1885 5030 1886 5067 1887 5226 1888 5417 1889 5663 1890 5642 1891 5595 1892 5413 1893 5363 1894 5670 1895 5795 1896 5979 1897 6000 1898 6232 1899 6428 1900 6322 1901 6264 1902 6369 1903 6248 1904 6232 1905 6362 1906 6518 1907 6585 1908 6262 1909 6348 1910 6489 1911 6627 1912 6702 1913 6925 1914 6934 1915 7443 1916 7578 1917 7630 1918 7683 1919 6855 1920 6401 1921 6248 1922 6526 1923 6699 1924 6926 1925 7240 1926 6947 1927 7480 1928 7539 1929 7745 1930 7657 1931 7232 1932 7246 1933 7428 1934 7892 1935 8162 1936 8494 1937 8751 1938 8819 1939 8814 1940 9649 1941 10530 1942 10750 1943 10900 1944 10420 1945 9931 1946 9493 1947 9295 1948 9494 1949 9789 1950 9767 1951 10030 1952 9980 1953 10340 1954 10720 1955 11070 1956 11160 1957 11280 1958 11210 1959 11600 1960 12170 1961 12460 1962 12480 1963 12880 1964 13470 1965 13720 1966 13910 1967 14140 1968 14650 1969 14850 1970 15150 1971 15400 1972 15900 1973 16920 1974 16690 1975 16670 1976 17050 1977 17430 1978 18050 1979 18530 1980 18200 1981 17940 1982 18230 1983 18870 1984 19310 1985 19940 1986 20750 1987 21660 1988 22670 1989 23100 1990 23120 1991 22740 1992 22710 1993 23170 1994 24120 1995 24720 1996 25330 1997 26070 1998 26770 1999 27470 2000 28640 2001 28980 2002 29480 2003 30200 2004 31100 2005 31580 2006 32210 2007 33170 2008 32620 2009 31130 2010 31450 2011 31500 2012 31300 2013 31260 2014 31480 2015 31810 2016 32180 2017 32610 2018 33180