Year Number of
1800 141100
1801 141600
1802 142000
1803 142500
1804 142900
1805 143400
1806 143900
1807 144300
1808 144800
1809 145200
1810 145700
1811 146200
1812 146700
1813 147200
1814 147700
1815 148300
1816 148800
1817 149400
1818 150000
1819 150600
1820 151200
1821 151800
1822 152500
1823 153100
1824 153800
1825 154500
1826 155200
1827 155900
1828 156700
1829 157500
1830 158200
1831 159000
1832 159800
1833 160600
1834 161500
1835 162300
1836 163100
1837 163900
1838 164700
1839 165600
1840 166400
1841 167300
1842 168200
1843 169200
1844 170200
1845 171200
1846 172300
1847 173400
1848 174600
1849 175800
1850 177000
1851 178400
1852 179800
1853 181200
1854 182700
1855 184200
1856 185700
1857 187400
1858 189000
1859 190700
1860 192500
1861 194400
1862 196300
1863 198200
1864 200200
1865 202200
1866 204300
1867 206500
1868 208700
1869 210900
1870 213200
1871 215600
1872 218000
1873 220200
1874 222700
1875 225300
1876 227900
1877 230500
1878 233300
1879 236200
1880 239100
1881 241900
1882 244900
1883 247900
1884 250800
1885 254000
1886 257200
1887 260300
1888 263700
1889 267300
1890 271000
1891 284700
1892 299200
1893 314500
1894 289400
1895 269200
1896 278900
1897 305700
1898 302600
1899 325300
1900 304800
1901 304800
1902 302400
1903 302200
1904 300900
1905 324800
1906 316100
1907 317700
1908 309400
1909 302400
1910 315800
1911 308100
1912 298700
1913 290800
1914 283000
1915 274500
1916 267000
1917 259700
1918 260800
1919 262700
1920 264400
1921 266700
1922 271100
1923 265900
1924 273900
1925 282200
1926 266400
1927 219900
1928 269700
1929 265900
1930 268600
1931 264700
1932 267300
1933 286100
1934 286400
1935 273900
1936 302400
1937 326500
1938 307600
1939 254200
1940 325700
1941 296700
1942 334700
1943 308400
1944 310800
1945 306200
1946 305800
1947 294900
1948 278200
1949 312400
1950 305600
1951 296200
1952 290700
1953 285100
1954 279500
1955 273800
1956 268200
1957 262600
1958 257100
1959 251700
1960 248900
1961 246300
1962 243900
1963 230100
1964 233600
1965 235800
1966 237400
1967 237500
1968 236400
1969 235600
1970 235500
1971 236800
1972 238500
1973 240200
1974 239300
1975 234800
1976 226600
1977 214200
1978 199300
1979 184300
1980 171600
1981 161200
1982 153500
1983 148300
1984 144200
1985 139900
1986 135400
1987 130700
1988 125700
1989 120400
1990 115000
1991 109200
1992 103500
1993 97800
1994 92370
1995 86980
1996 82280
1997 77600
1998 73080
1999 68590
2000 64090
2001 59950
2002 55650
2003 52060
2004 49080
2005 46550
2006 44760
2007 43380
2008 42140
2009 40960
2010 39580
2011 37780
2012 36230
2013 34430
2014 32780
2015 31280