Year S/N
1867 1
1870 20
1875 100
1882 250
1888 500
1893 750
1899 1,000,000
1901 1,250,000
1904 1,500,000
1905 1,750,000
1907 2,000,000
1909 2,250,000
1911 2,500,000
1912 2,750,000
1913 3,000,000
1915 3,250,000
1917 3,500,000
1919 3,750,000
1922 4,000,000
1925 4,250,000
1926 4,500,000
1928 4,750,000
1929 5,000,000
1934 5,250,000
1937 5,500,000
1938 5,750,000
1940 6,000,000
1945 7,000,000
1950 8,000,000
1953 9,000,000
1956 10,000,000
1959 11,000,000
1962 12,000,000
1966 13,000,000
1967 14,000,000
1969 15,000,000