Year Number of
1800 25700
1801 25800
1802 25890
1803 25990
1804 26080
1805 26180
1806 26270
1807 26370
1808 26470
1809 26560
1810 26670
1811 26770
1812 26890
1813 27010
1814 27140
1815 27280
1816 27440
1817 27600
1818 27770
1819 27950
1820 28140
1821 28340
1822 28540
1823 28760
1824 28990
1825 29230
1826 29480
1827 29740
1828 30020
1829 30300
1830 30600
1831 30900
1832 31210
1833 31520
1834 31840
1835 32150
1836 32470
1837 32800
1838 33120
1839 33460
1840 33790
1841 34130
1842 34470
1843 34810
1844 35160
1845 35510
1846 35860
1847 36220
1848 36580
1849 36950
1850 37320
1851 37690
1852 38070
1853 38450
1854 38830
1855 39220
1856 39610
1857 40000
1858 40400
1859 40810
1860 41210
1861 41650
1862 42110
1863 42600
1864 43120
1865 43670
1866 44260
1867 44870
1868 45520
1869 46200
1870 46920
1871 47670
1872 48460
1873 49120
1874 49990
1875 50900
1876 51850
1877 52740
1878 53800
1879 54920
1880 56050
1881 57150
1882 58340
1883 59540
1884 60720
1885 61980
1886 63260
1887 64520
1888 65850
1889 67220
1890 68610
1891 70030
1892 71480
1893 72960
1894 74470
1895 76010
1896 77570
1897 79160
1898 80770
1899 82400
1900 84040
1901 85710
1902 87340
1903 89040
1904 90760
1905 92500
1906 94260
1907 95950
1908 97740
1909 99560
1910 101400
1911 103200
1912 105100
1913 107100
1914 109100
1915 111200
1916 113400
1917 115600
1918 117800
1919 120100
1920 122400
1921 124800
1922 127200
1923 129600
1924 132100
1925 134700
1926 137300
1927 139800
1928 142400
1929 145000
1930 148700
1931 150000
1932 151300
1933 152400
1934 153400
1935 154400
1936 155300
1937 156100
1938 156800
1939 157500
1940 158000
1941 158400
1942 158800
1943 159000
1944 159200
1945 159300
1946 159300
1947 159200
1948 159100
1949 158800
1950 158500
1951 156900
1952 154000
1953 151800
1954 149500
1955 147800
1956 146600
1957 145400
1958 143900
1959 143000
1960 142000
1961 140700
1962 139100
1963 137200
1964 135100
1965 132800
1966 130700
1967 128900
1968 127400
1969 126300
1970 125400
1971 124500
1972 123600
1973 122500
1974 122300
1975 117600
1976 112800
1977 107400
1978 101700
1979 96080
1980 91000
1981 86500
1982 82960
1983 80040
1984 77680
1985 75330
1986 72940
1987 70540
1988 68060
1989 65810
1990 63990
1991 62290
1992 61310
1993 61400
1994 62530
1995 64990
1996 69080
1997 74210
1998 79610
1999 84320
2000 87880
2001 89320
2002 88430
2003 85760
2004 82310
2005 80100
2006 78920
2007 79700
2008 79740
2009 76070
2010 65440
2011 60360
2012 56080
2013 48550
2014 44140
2015 41930