Year Number of 1800 50930 1801 50930 1802 50930 1803 50930 1804 50930 1805 50930 1806 50930 1807 50930 1808 50930 1809 50930 1810 50930 1811 50940 1812 50950 1813 50980 1814 51010 1815 51050 1816 51100 1817 51160 1818 51220 1819 51300 1820 51380 1821 51470 1822 51570 1823 51670 1824 51790 1825 51910 1826 52040 1827 52190 1828 52340 1829 52490 1830 52660 1831 52840 1832 53010 1833 53190 1834 53360 1835 53540 1836 53720 1837 53900 1838 54080 1839 54260 1840 54440 1841 54620 1842 54800 1843 54980 1844 55170 1845 55350 1846 55540 1847 55720 1848 55900 1849 56090 1850 56280 1851 56460 1852 56650 1853 56830 1854 57020 1855 57210 1856 57400 1857 57580 1858 57770 1859 57960 1860 58150 1861 58340 1862 58530 1863 58720 1864 58920 1865 59110 1866 59300 1867 59500 1868 59700 1869 59890 1870 60090 1871 60280 1872 60480 1873 60680 1874 60880 1875 61080 1876 61280 1877 61480 1878 61680 1879 61880 1880 62080 1881 62280 1882 62490 1883 62700 1884 62900 1885 63100 1886 63310 1887 63520 1888 63730 1889 63940 1890 64150 1891 64360 1892 64570 1893 64780 1894 64990 1895 65200 1896 65400 1897 65600 1898 65790 1899 65970 1900 66140 1901 66300 1902 66440 1903 66580 1904 66710 1905 66830 1906 66940 1907 67040 1908 67120 1909 67200 1910 67260 1911 67320 1912 67360 1913 67370 1914 67370 1915 67370 1916 67370 1917 67370 1918 67380 1919 67380 1920 67380 1921 67760 1922 68540 1923 70320 1924 72170 1925 73830 1926 75760 1927 77730 1928 78360 1929 79220 1930 80880 1931 82720 1932 84290 1933 86060 1934 87530 1935 89210 1936 90600 1937 92210 1938 93500 1939 94740 1940 95960 1941 97120 1942 98240 1943 99320 1944 100400 1945 97520 1946 94710 1947 91940 1948 89220 1949 86530 1950 83900 1951 80450 1952 77850 1953 75450 1954 71440 1955 71450 1956 71430 1957 70750 1958 70110 1959 69760 1960 69880 1961 70270 1962 71160 1963 72320 1964 73690 1965 75050 1966 76630 1967 78090 1968 79440 1969 80870 1970 82500 1971 84750 1972 87290 1973 90330 1974 94120 1975 98860 1976 104400 1977 110400 1978 116600 1979 122300 1980 127100 1981 130400 1982 131600 1983 131600 1984 131900 1985 133500 1986 136200 1987 140000 1988 144200 1989 148200 1990 151300 1991 154100 1992 155900 1993 157500 1994 159300 1995 161400 1996 163600 1997 164700 1998 164300 1999 162800 2000 160300 2001 156600 2002 151900 2003 146500 2004 140600 2005 134400 2006 128100 2007 121600 2008 115400 2009 110000 2010 105500 2011 100000 2012 93670 2013 90170 2014 86880 2015 85290