Key Dates
1916 - 52,000
1917 D - 1,509,200
1917 S - 1,952,000
1919 D - 1,944,000
1919 S - 1,836,000
1920 D - 3,586,400
1921 - 1,916,000
1923 S - 1,360,000
1924 D - 3,112,000
1924 S - 2,860,000
1926 D - 1,716,000
1926 S - 2,700,000
1927 D - 976,000
1927 S - 396,000
1928 D - 1,627,600
1929 D - 1,358,000
1929 S - 1,764,000
1939 S - 1,556,000
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