Month Thousands Of Pieces 1917-04-01 50.3000 1917-05-01 34.0000 1917-06-01 60.4000 1917-07-01 12.3000 1917-08-01 12.8000 1917-09-01 9.30000 1917-10-01 6.10000 1917-11-01 6.90000 1917-12-01 5.80000 1918-01-01 173.600 1918-02-01 13.5000 1918-03-01 16.9000 1918-04-01 34.1000 1918-05-01 47.4000 1918-06-01 43.4000 1918-07-01 21.3000 1918-08-01 17.9000 1918-09-01 24.0000 1918-10-01 12.6000 1918-11-01 6.50000 1918-12-01 2.90000 1919-01-01 4.80000 1919-02-01 7.80000 1919-03-01 13.5000 1919-04-01 26.3000 1919-05-01 50.0000 1919-06-01 102.600 1919-07-01 145.000 1919-08-01 90.0000 1919-09-01 62.9000 1919-10-01 78.5000 1919-11-01 119.800 1919-12-01 137.300 1920-01-01 80.1000 1920-02-01 45.5000 1920-03-01 51.5000 1920-04-01 40.9000 1920-05-01 26.4000 1920-06-01 40.2000 1920-07-01 31.1000 1920-08-01 35.7000 1920-09-01 25.0000 1920-10-01 21.3000 1920-11-01 15.6000 1920-12-01 8.10000 1921-01-01 16.3000 1921-02-01 21.3000 1921-03-01 29.5000 1921-04-01 32.6000 1921-05-01 35.7000 1921-06-01 44.0000 1921-07-01 47.2000 1921-08-01 61.9000 1921-09-01 57.0000 1921-10-01 62.3000 1921-11-01 41.2000 1921-12-01 42.0000 1922-01-01 59.0000 1922-02-01 52.7000 1922-03-01 65.1000 1922-04-01 111.000 1922-05-01 154.200 1922-06-01 134.200 1922-07-01 102.100 1922-08-01 84.9000 1922-09-01 82.9000 1922-10-01 80.0000 1922-11-01 92.8000 1922-12-01 97.9000 1923-01-01 147.500 1923-02-01 135.000 1923-03-01 122.600 1923-04-01 105.500 1923-05-01 77.7000 1923-06-01 67.4000 1923-07-01 67.8000 1923-08-01 76.2000 1923-09-01 75.8000 1923-10-01 106.800 1923-11-01 86.6000 1923-12-01 98.9000 1924-01-01 114.900 1924-02-01 148.300 1924-03-01 131.100 1924-04-01 98.3000 1924-05-01 74.9000 1924-06-01 73.8000 1924-07-01 94.0000 1924-08-01 92.3000 1924-09-01 90.2000 1924-10-01 78.6000 1924-11-01 78.3000 1924-12-01 110.300 1925-01-01 121.100 1925-02-01 100.900 1925-03-01 110.300 1925-04-01 110.700 1925-05-01 122.800 1925-06-01 129.800 1925-07-01 140.700 1925-08-01 129.800 1925-09-01 121.800 1925-10-01 110.400 1925-11-01 93.7000 1925-12-01 98.0000 1926-01-01 103.500 1926-02-01 87.0000 1926-03-01 118.100 1926-04-01 110.500 1926-05-01 124.500 1926-06-01 119.600 1926-07-01 112.600 1926-08-01 113.800 1926-09-01 97.2000 1926-10-01 92.0000 1926-11-01 84.2000 1926-12-01 80.0000 1927-01-01 86.8000 1927-02-01 80.1000 1927-03-01 105.300 1927-04-01 99.2000 1927-05-01 109.600 1927-06-01 113.300 1927-07-01 117.700 1927-08-01 110.900 1927-09-01 100.400 1927-10-01 85.4000 1927-11-01 71.4000 1927-12-01 68.1000 1928-01-01 78.2000 1928-02-01 84.6000 1928-03-01 124.700 1928-04-01 183.600 1928-05-01 122.100 1928-06-01 97.1000 1928-07-01 88.6000 1928-08-01 84.6000 1928-09-01 65.4000 1928-10-01 82.9000 1928-11-01 68.8000 1928-12-01 57.2000 1929-01-01 64.5000 1929-02-01 73.7000 1929-03-01 95.1000 1929-04-01 97.2000 1929-05-01 86.3000 1929-06-01 81.1000 1929-07-01 119.300 1929-08-01 115.600 1929-09-01 59.0000 1929-10-01 57.1000 1929-11-01 44.7000 1929-12-01 45.5000 1930-01-01 30.2000 1930-02-01 66.1000 1930-03-01 66.7000 1930-04-01 55.2000 1930-05-01 49.4000 1930-06-01 54.8000 1930-07-01 48.7000 1930-08-01 48.4000 1930-09-01 41.8000 1930-10-01 43.8000 1930-11-01 30.8000 1930-12-01 52.3000 1931-01-01 56.5000 1931-02-01 28.0000 1931-03-01 33.2000 1931-04-01 40.1000 1931-05-01 43.0000 1931-06-01 43.2000 1931-07-01 46.7000 1931-08-01 35.5000 1931-09-01 33.6000 1931-10-01 35.7000 1931-11-01 24.4000 1931-12-01 13.7000