Year Number of
1800 63750
1801 63750
1802 63750
1803 63750
1804 63750
1805 63750
1806 63750
1807 63750
1808 63750
1809 63750
1810 63750
1811 63760
1812 63790
1813 63820
1814 63870
1815 63930
1816 64000
1817 64080
1818 64170
1819 64280
1820 64400
1821 64530
1822 64670
1823 64820
1824 64990
1825 65170
1826 65360
1827 65570
1828 65780
1829 66010
1830 66250
1831 66510
1832 66760
1833 67020
1834 67270
1835 67530
1836 67790
1837 68050
1838 68310
1839 68570
1840 68830
1841 69100
1842 69360
1843 69630
1844 69900
1845 70160
1846 70430
1847 70700
1848 70970
1849 71240
1850 71520
1851 71810
1852 72100
1853 72400
1854 72690
1855 72990
1856 73290
1857 73580
1858 73880
1859 74190
1860 74490
1861 74880
1862 75380
1863 75970
1864 76660
1865 77460
1866 78370
1867 79400
1868 80540
1869 81800
1870 83180
1871 84690
1872 86340
1873 87510
1874 89450
1875 91540
1876 93800
1877 95800
1878 98470
1879 101300
1880 104300
1881 107100
1882 110200
1883 113400
1884 116500
1885 119900
1886 123400
1887 126800
1888 130600
1889 134500
1890 138500
1891 142700
1892 147100
1893 151600
1894 156300
1895 161200
1896 166200
1897 171100
1898 175800
1899 180300
1900 184700
1901 188800
1902 193300
1903 197000
1904 200300
1905 203300
1906 205900
1907 208500
1908 211100
1909 213800
1910 216200
1911 218700
1912 220500
1913 222000
1914 223400
1915 224900
1916 226300
1917 227800
1918 228700
1919 230100
1920 231500
1921 233700
1922 235400
1923 237300
1924 239200
1925 241100
1926 243100
1927 245000
1928 247000
1929 249000
1930 253100
1931 257200
1932 261300
1933 265400
1934 269500
1935 273500
1936 277500
1937 281500
1938 285400
1939 289400
1940 293300
1941 297200
1942 327600
1943 326900
1944 335000
1945 340200
1946 335100
1947 329000
1948 323800
1949 315700
1950 306600
1951 300000
1952 294800
1953 289800
1954 285000
1955 280500
1956 276100
1957 272000
1958 268000
1959 264200
1960 260600
1961 251400
1962 242700
1963 234300
1964 226300
1965 218700
1966 211300
1967 204200
1968 190900
1969 189900
1970 188600
1971 187100
1972 184600
1973 181500
1974 178700
1975 176300
1976 174500
1977 172500
1978 171000
1979 169500
1980 167900
1981 166600
1982 164900
1983 162700
1984 159300
1985 154900
1986 149100
1987 142100
1988 134300
1989 126900
1990 120700
1991 115500
1992 111500
1993 108400
1994 105800
1995 103500
1996 101500
1997 99600
1998 97740
1999 95800
2000 93820
2001 92220
2002 90250
2003 87920
2004 84880
2005 81340
2006 77210
2007 72570
2008 94930
2009 63250
2010 59300
2011 55570
2012 52580
2013 50150
2014 48050
2015 46280