Year Number of
1800 67560
1801 67560
1802 67560
1803 67560
1804 67560
1805 67560
1806 67560
1807 67560
1808 67560
1809 67560
1810 67560
1811 67570
1812 67590
1813 67630
1814 67680
1815 67740
1816 67820
1817 67900
1818 68000
1819 68110
1820 68240
1821 68380
1822 68530
1823 68690
1824 68870
1825 69060
1826 69260
1827 69480
1828 69710
1829 69950
1830 70200
1831 70470
1832 70740
1833 71010
1834 71280
1835 71560
1836 71830
1837 72100
1838 72380
1839 72660
1840 72940
1841 73210
1842 73490
1843 73780
1844 74060
1845 74340
1846 74630
1847 74910
1848 75200
1849 75490
1850 75780
1851 76100
1852 76420
1853 76750
1854 77070
1855 77400
1856 77730
1857 78060
1858 78390
1859 78730
1860 79060
1861 79400
1862 79750
1863 80100
1864 80460
1865 80830
1866 81200
1867 81580
1868 81960
1869 82360
1870 82750
1871 83160
1872 83570
1873 83960
1874 84380
1875 84820
1876 85260
1877 85690
1878 86150
1879 86620
1880 87090
1881 87560
1882 88030
1883 88510
1884 88980
1885 89440
1886 89880
1887 90360
1888 90760
1889 91150
1890 91500
1891 91840
1892 92140
1893 92420
1894 92680
1895 92900
1896 93110
1897 93340
1898 93590
1899 93850
1900 94130
1901 94420
1902 94660
1903 94990
1904 95350
1905 95730
1906 96090
1907 96430
1908 96760
1909 97080
1910 97400
1911 97680
1912 97950
1913 98390
1914 99010
1915 99800
1916 100600
1917 101400
1918 102200
1919 102900
1920 103700
1921 104500
1922 105300
1923 106100
1924 106900
1925 107700
1926 108300
1927 109100
1928 109800
1929 110500
1930 112400
1931 114400
1932 116300
1933 118300
1934 120200
1935 122100
1936 124000
1937 125900
1938 127700
1939 129600
1940 131400
1941 133300
1942 134300
1943 135400
1944 136400
1945 137300
1946 138300
1947 139200
1948 140100
1949 141000
1950 141800
1951 142300
1952 143500
1953 144500
1954 145500
1955 146300
1956 148200
1957 145500
1958 141600
1959 137400
1960 134600
1961 132700
1962 132600
1963 133700
1964 134800
1965 135100
1966 134500
1967 133300
1968 131800
1969 130500
1970 129600
1971 129100
1972 128400
1973 127900
1974 127400
1975 127100
1976 127000
1977 126600
1978 125900
1979 125000
1980 123800
1981 122500
1982 120700
1983 118600
1984 116200
1985 113800
1986 111100
1987 107900
1988 104600
1989 101200
1990 97910
1991 94260
1992 90650
1993 87010
1994 83460
1995 79910
1996 76600
1997 73270
1998 69580
1999 65680
2000 61510
2001 57400
2002 53150
2003 48970
2004 45010
2005 41560
2006 38420
2007 35800
2008 33380
2009 31100
2010 28850
2011 26600
2012 24390
2013 22480
2014 21020
2015 19900