Year Number of
1800 73980
1801 73980
1802 73980
1803 73980
1804 73980
1805 73980
1806 74200
1807 74200
1808 74200
1809 74200
1810 74200
1811 74220
1812 74260
1813 74310
1814 74380
1815 74470
1816 74800
1817 74920
1818 75070
1819 75230
1820 75410
1821 75610
1822 75830
1823 76070
1824 76320
1825 76600
1826 77120
1827 77440
1828 77770
1829 78120
1830 78500
1831 78890
1832 79280
1833 79680
1834 80080
1835 80470
1836 81120
1837 81520
1838 81930
1839 82340
1840 82750
1841 83160
1842 83580
1843 84000
1844 84420
1845 85090
1846 85520
1847 85940
1848 86370
1849 86800
1850 87240
1851 87610
1852 87980
1853 88350
1854 88720
1855 89360
1856 89740
1857 90120
1858 90500
1859 90880
1860 91260
1861 91660
1862 92070
1863 92490
1864 92920
1865 93640
1866 94100
1867 94560
1868 95050
1869 95540
1870 96050
1871 96570
1872 97100
1873 97580
1874 98140
1875 99020
1876 99610
1877 100200
1878 100800
1879 101500
1880 102100
1881 102800
1882 103400
1883 104100
1884 104700
1885 105700
1886 106400
1887 107100
1888 107800
1889 108400
1890 109100
1891 109800
1892 110600
1893 111300
1894 112300
1895 113000
1896 113700
1897 114400
1898 115100
1899 115800
1900 116400
1901 117100
1902 117700
1903 118300
1904 119300
1905 119900
1906 120400
1907 121000
1908 121500
1909 122000
1910 122500
1911 123000
1912 123500
1913 124100
1914 125200
1915 126000
1916 126800
1917 127600
1918 128500
1919 129500
1920 130500
1921 131400
1922 132400
1923 133400
1924 134800
1925 135700
1926 137300
1927 138700
1928 140200
1929 141800
1930 143300
1931 144700
1932 146100
1933 148000
1934 149500
1935 150900
1936 152300
1937 153700
1938 155100
1939 156500
1940 157900
1941 159200
1942 160600
1943 162400
1944 163800
1945 165100
1946 166500
1947 167800
1948 169100
1949 170400
1950 171700
1951 171600
1952 170300
1953 169100
1954 168100
1955 167200
1956 166400
1957 165700
1958 166100
1959 166700
1960 167500
1961 157300
1962 157500
1963 157200
1964 157300
1965 157800
1966 158700
1967 159500
1968 160600
1969 162000
1970 163700
1971 165100
1972 166100
1973 166800
1974 166800
1975 166400
1976 166900
1977 166700
1978 164900
1979 161000
1980 154300
1981 148200
1982 140300
1983 131600
1984 123700
1985 117900
1986 110300
1987 103800
1988 99490
1989 98110
1990 100400
1991 101400
1992 104900
1993 109600
1994 113800
1995 116200
1996 119600
1997 121800
1998 122900
1999 124000
2000 125600
2001 126400
2002 126900
2003 127100
2004 126500
2005 124800
2006 123700
2007 122000
2008 119900
2009 117300
2010 114600
2011 110600
2012 106200
2013 101800
2014 97690
2015 94260