Year Number of
1800 90020
1801 90020
1802 90020
1803 90020
1804 90020
1805 90020
1806 90020
1807 90020
1808 90020
1809 90020
1810 90020
1811 90040
1812 90070
1813 90120
1814 90190
1815 90270
1816 90370
1817 90480
1818 90620
1819 90770
1820 90930
1821 91120
1822 91320
1823 91540
1824 91770
1825 92020
1826 92290
1827 92580
1828 92880
1829 93200
1830 93540
1831 93900
1832 94260
1833 94620
1834 94980
1835 95340
1836 95710
1837 96070
1838 96440
1839 96810
1840 97180
1841 97550
1842 97940
1843 98330
1844 98730
1845 99130
1846 99540
1847 99960
1848 100400
1849 100800
1850 101300
1851 101700
1852 102200
1853 102700
1854 103200
1855 103800
1856 104300
1857 104800
1858 105400
1859 105900
1860 106500
1861 107000
1862 107600
1863 108200
1864 108900
1865 109500
1866 110200
1867 110800
1868 111500
1869 112200
1870 112900
1871 113700
1872 114400
1873 115100
1874 115900
1875 116700
1876 117600
1877 118400
1878 119200
1879 120200
1880 121100
1881 122000
1882 122900
1883 123800
1884 124700
1885 125700
1886 126700
1887 127700
1888 128700
1889 129800
1890 130900
1891 132000
1892 133200
1893 134400
1894 135700
1895 136900
1896 138300
1897 139700
1898 141100
1899 142600
1900 144100
1901 145600
1902 147100
1903 148700
1904 150400
1905 152100
1906 153800
1907 155500
1908 157200
1909 159000
1910 160900
1911 162700
1912 164900
1913 167000
1914 169200
1915 171400
1916 173700
1917 176200
1918 179000
1919 182200
1920 185400
1921 188700
1922 192200
1923 195900
1924 199900
1925 203900
1926 207700
1927 211900
1928 216600
1929 222000
1930 228100
1931 224300
1932 220400
1933 216100
1934 211000
1935 206400
1936 201500
1937 196500
1938 200700
1939 204900
1940 216300
1941 213500
1942 210500
1943 207500
1944 204400
1945 201300
1946 198200
1947 195000
1948 191800
1949 188500
1950 182300
1951 179100
1952 175700
1953 172800
1954 170500
1955 169100
1956 168500
1957 168100
1958 168200
1959 168000
1960 167200
1961 166100
1962 164300
1963 162100
1964 159900
1965 157700
1966 155500
1967 153100
1968 150100
1969 146100
1970 140700
1971 133800
1972 126000
1973 117900
1974 110100
1975 103100
1976 96940
1977 91370
1978 86480
1979 81990
1980 77470
1981 73030
1982 68670
1983 64450
1984 60480
1985 56690
1986 53150
1987 49720
1988 46520
1989 43300
1990 40290
1991 37820
1992 35500
1993 33300
1994 31270
1995 29380
1996 27400
1997 25460
1998 23540
1999 21840
2000 20440
2001 19260
2002 18220
2003 17340
2004 16440
2005 15460
2006 14540
2007 13680
2008 12820
2009 12070
2010 11480
2011 10940
2012 10450
2013 10060
2014 9560
2015 9173