Year Number of 1800 5186000 1801 5230000 1802 5274000 1803 5319000 1804 5364000 1805 5410000 1806 5456000 1807 5502000 1808 5549000 1809 5596000 1810 5651000 1811 5699000 1812 5746000 1813 5794000 1814 5842000 1815 5889000 1816 5937000 1817 5984000 1818 6032000 1819 6079000 1820 6127000 1821 6172000 1822 6216000 1823 6257000 1824 6296000 1825 6333000 1826 6368000 1827 6401000 1828 6432000 1829 6460000 1830 6487000 1831 6510000 1832 6532000 1833 6552000 1834 6569000 1835 6585000 1836 6598000 1837 6609000 1838 6618000 1839 6625000 1840 6629000 1841 6629000 1842 6625000 1843 6619000 1844 6609000 1845 6597000 1846 6582000 1847 6564000 1848 6543000 1849 6519000 1850 6492000 1851 6664000 1852 6836000 1853 7010000 1854 7185000 1855 7362000 1856 7539000 1857 7361000 1858 7163000 1859 6988000 1860 6816000 1861 6647000 1862 6467000 1863 6314000 1864 6166000 1865 6118000 1866 6056000 1867 6016000 1868 5961000 1869 5928000 1870 5881000 1871 5855000 1872 5850000 1873 5836000 1874 5837000 1875 5840000 1876 5845000 1877 5848000 1878 5861000 1879 5877000 1880 5893000 1881 5908000 1882 5925000 1883 5941000 1884 5958000 1885 5976000 1886 5995000 1887 6013000 1888 6034000 1889 6056000 1890 6080000 1891 6104000 1892 6130000 1893 6157000 1894 6185000 1895 6213000 1896 6243000 1897 6272000 1898 6301000 1899 6329000 1900 6357000 1901 6384000 1902 6409000 1903 6435000 1904 6460000 1905 6485000 1906 6509000 1907 6532000 1908 6553000 1909 6582000 1910 6617000 1911 6651000 1912 6706000 1913 6762000 1914 6818000 1915 6875000 1916 6932000 1917 6990000 1918 7050000 1919 7111000 1920 7153000 1921 7179000 1922 7187000 1923 7194000 1924 7202000 1925 7210000 1926 7218000 1927 7225000 1928 7233000 1929 7240000 1930 7364000 1931 7373000 1932 7378000 1933 7381000 1934 7379000 1935 7376000 1936 7368000 1937 7406000 1938 7417000 1939 7449000 1940 7480000 1941 7565000 1942 7649000 1943 7733000 1944 7815000 1945 7897000 1946 7978000 1947 8057000 1948 8136000 1949 8214000 1950 8291000 1951 7949000 1952 7462000 1953 7068000 1954 6765000 1955 6547000 1956 6058000 1957 5670000 1958 5361000 1959 6333000 1960 7535000 1961 6628000 1962 4416000 1963 4047000 1964 3696000 1965 3354000 1966 3581000 1967 3795000 1968 3989000 1969 3657000 1970 3445000 1971 3217000 1972 2958000 1973 2681000 1974 2401000 1975 2127000 1976 1865000 1977 1626000 1978 1430000 1979 1284000 1980 1189000 1981 1140000 1982 1137000 1983 1169000 1984 1226000 1985 1301000 1986 1396000 1987 1503000 1988 1601000 1989 1652000 1990 1634000 1991 1545000 1992 1376000 1993 1163000 1994 961000 1995 809200 1996 700600 1997 644200 1998 621600 1999 607800 2000 585000 2001 554300 2002 519900 2003 482400 2004 443200 2005 406100 2006 370600 2007 335800 2008 303100 2009 274100 2010 251600 2011 233800 2012 219500 2013 205500 2014 193000 2015 181600