Year Number of 1800 21200 1801 21210 1802 21220 1803 21230 1804 21240 1805 21250 1806 21260 1807 21260 1808 21270 1809 21280 1810 21290 1811 21310 1812 21330 1813 21360 1814 21390 1815 21430 1816 21470 1817 21520 1818 21580 1819 21650 1820 21720 1821 21800 1822 21880 1823 21970 1824 22070 1825 22170 1826 22280 1827 22400 1828 22520 1829 22650 1830 22790 1831 22930 1832 23080 1833 23220 1834 23370 1835 23510 1836 23660 1837 23810 1838 23960 1839 24110 1840 24260 1841 24420 1842 24570 1843 24730 1844 24880 1845 25040 1846 25200 1847 25360 1848 25520 1849 25680 1850 25840 1851 26000 1852 26160 1853 26320 1854 26490 1855 26650 1856 26820 1857 26990 1858 27160 1859 27320 1860 27490 1861 27660 1862 27840 1863 28010 1864 28190 1865 28360 1866 28540 1867 28720 1868 28890 1869 29070 1870 29260 1871 29440 1872 29620 1873 29800 1874 29990 1875 30170 1876 30360 1877 30550 1878 30740 1879 30930 1880 31120 1881 31310 1882 31510 1883 31700 1884 31900 1885 32100 1886 32300 1887 32500 1888 32700 1889 32900 1890 33100 1891 33310 1892 33520 1893 33730 1894 33940 1895 34150 1896 34350 1897 34560 1898 34760 1899 34960 1900 35150 1901 35340 1902 35520 1903 35700 1904 35870 1905 36040 1906 36210 1907 36360 1908 36520 1909 36670 1910 36810 1911 36960 1912 37100 1913 37240 1914 37380 1915 37520 1916 37660 1917 37810 1918 37960 1919 38100 1920 38250 1921 38390 1922 38540 1923 38690 1924 38840 1925 38990 1926 39240 1927 39440 1928 39700 1929 39900 1930 40180 1931 40460 1932 40730 1933 41000 1934 41270 1935 41540 1936 41810 1937 42070 1938 42330 1939 42600 1940 42850 1941 43110 1942 43370 1943 43620 1944 43880 1945 44130 1946 43310 1947 42630 1948 41830 1949 41160 1950 40360 1951 40290 1952 40250 1953 40180 1954 40070 1955 39930 1956 39750 1957 39530 1958 39270 1959 39030 1960 38800 1961 38580 1962 38380 1963 38180 1964 37970 1965 37720 1966 37380 1967 36940 1968 36500 1969 36120 1970 35920 1971 36140 1972 36590 1973 37730 1974 39200 1975 40950 1976 42920 1977 44980 1978 46970 1979 48800 1980 57600 1981 59240 1982 52430 1983 50480 1984 49040 1985 48560 1986 48720 1987 49380 1988 50240 1989 50800 1990 50590 1991 49820 1992 48980 1993 48440 1994 48680 1995 50030 1996 51400 1997 53500 1998 56080 1999 58600 2000 60660 2001 62240 2002 63140 2003 63640 2004 64200 2005 65150 2006 66300 2007 67350 2008 67980 2009 68050 2010 67650 2011 66510 2012 64920 2013 63200 2014 61500 2015 60540