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