Year Number of
1800 31790
1801 31790
1802 31790
1803 31790
1804 31790
1805 31790
1806 31790
1807 31790
1808 31840
1809 31840
1810 31840
1811 31850
1812 31870
1813 31900
1814 31950
1815 32010
1816 32070
1817 32150
1818 32240
1819 32350
1820 32460
1821 32590
1822 32720
1823 32880
1824 33090
1825 33260
1826 33450
1827 33650
1828 33860
1829 34090
1830 34320
1831 34570
1832 34830
1833 35080
1834 35340
1835 35590
1836 35850
1837 36120
1838 36380
1839 36640
1840 36970
1841 37240
1842 37510
1843 37780
1844 38060
1845 38340
1846 38620
1847 38900
1848 39180
1849 39470
1850 39750
1851 40040
1852 40340
1853 40630
1854 40920
1855 41280
1856 41580
1857 41890
1858 42190
1859 42500
1860 42810
1861 43120
1862 43440
1863 43750
1864 44070
1865 44390
1866 44720
1867 45040
1868 45370
1869 45700
1870 46030
1871 46440
1872 46780
1873 47110
1874 47450
1875 47800
1876 48140
1877 48490
1878 48840
1879 49200
1880 49550
1881 49910
1882 50270
1883 50640
1884 51000
1885 51370
1886 51820
1887 52190
1888 52570
1889 52960
1890 53340
1891 53730
1892 54120
1893 54520
1894 54910
1895 55310
1896 55700
1897 56090
1898 56480
1899 56860
1900 57230
1901 57600
1902 58040
1903 58400
1904 58740
1905 59080
1906 59410
1907 59730
1908 60050
1909 60360
1910 60660
1911 60960
1912 61270
1913 61580
1914 61880
1915 62190
1916 62500
1917 62810
1918 63220
1919 63530
1920 63840
1921 64160
1922 64480
1923 64790
1924 65110
1925 65430
1926 65760
1927 65980
1928 66300
1929 66630
1930 67410
1931 68180
1932 68940
1933 69710
1934 70470
1935 71220
1936 71970
1937 72720
1938 73460
1939 74200
1940 74930
1941 75350
1942 75760
1943 76160
1944 75370
1945 76000
1946 76620
1947 77200
1948 77710
1949 78270
1950 72280
1951 72690
1952 72760
1953 72540
1954 72440
1955 72640
1956 73090
1957 73370
1958 73320
1959 73070
1960 73170
1961 73630
1962 73590
1963 73360
1964 73410
1965 74000
1966 74980
1967 76110
1968 77490
1969 78940
1970 80500
1971 82010
1972 82500
1973 81920
1974 80600
1975 79070
1976 77620
1977 76230
1978 75310
1979 74980
1980 75110
1981 75800
1982 76300
1983 76620
1984 76800
1985 76920
1986 76930
1987 76680
1988 76750
1989 77440
1990 78850
1991 80760
1992 83020
1993 85190
1994 87080
1995 88710
1996 90180
1997 91120
1998 92090
1999 93000
2000 94000
2001 94800
2002 94870
2003 94130
2004 92410
2005 90040
2006 87120
2007 83520
2008 79640
2009 75710
2010 72170
2011 69140
2012 66480
2013 64090
2014 62100
2015 60480