Month Thousands Of Pieces 1917-04-01 22.0000 1917-05-01 20.6000 1917-06-01 29.6000 1917-07-01 16.5000 1917-08-01 11.4000 1917-09-01 9.20000 1917-10-01 12.0000 1917-11-01 7.40000 1917-12-01 7.70000 1918-01-01 14.3000 1918-02-01 11.1000 1918-03-01 21.2000 1918-04-01 42.6000 1918-05-01 43.4000 1918-06-01 46.9000 1918-07-01 21.3000 1918-08-01 26.4000 1918-09-01 24.9000 1918-10-01 34.7000 1918-11-01 11.0000 1918-12-01 7.30000 1919-01-01 9.10000 1919-02-01 11.7000 1919-03-01 15.8000 1919-04-01 22.6000 1919-05-01 36.2000 1919-06-01 57.0000 1919-07-01 72.0000 1919-08-01 54.6000 1919-09-01 42.7000 1919-10-01 57.1000 1919-11-01 46.5000 1919-12-01 86.6000 1920-01-01 45.2000 1920-02-01 35.7000 1920-03-01 43.0000 1920-04-01 29.6000 1920-05-01 25.4000 1920-06-01 30.1000 1920-07-01 24.8000 1920-08-01 28.4000 1920-09-01 20.7000 1920-10-01 23.8000 1920-11-01 14.7000 1920-12-01 11.0000 1921-01-01 22.6000 1921-02-01 21.8000 1921-03-01 32.8000 1921-04-01 29.6000 1921-05-01 28.7000 1921-06-01 35.1000 1921-07-01 29.5000 1921-08-01 36.8000 1921-09-01 38.4000 1921-10-01 45.1000 1921-11-01 31.5000 1921-12-01 29.9000 1922-01-01 55.2000 1922-02-01 37.1000 1922-03-01 49.2000 1922-04-01 64.8000 1922-05-01 82.5000 1922-06-01 77.1000 1922-07-01 62.3000 1922-08-01 58.7000 1922-09-01 60.1000 1922-10-01 53.2000 1922-11-01 63.5000 1922-12-01 67.5000 1923-01-01 97.8000 1923-02-01 78.2000 1923-03-01 72.1000 1923-04-01 65.2000 1923-05-01 62.3000 1923-06-01 45.0000 1923-07-01 49.7000 1923-08-01 54.5000 1923-09-01 46.4000 1923-10-01 62.8000 1923-11-01 63.8000 1923-12-01 61.5000 1924-01-01 88.3000 1924-02-01 106.000 1924-03-01 82.7000 1924-04-01 61.9000 1924-05-01 49.3000 1924-06-01 53.8000 1924-07-01 46.4000 1924-08-01 60.7000 1924-09-01 65.2000 1924-10-01 58.3000 1924-11-01 50.2000 1924-12-01 65.7000 1925-01-01 71.7000 1925-02-01 59.7000 1925-03-01 55.6000 1925-04-01 52.5000 1925-05-01 60.2000 1925-06-01 62.7000 1925-07-01 65.4000 1925-08-01 64.0000 1925-09-01 57.6000 1925-10-01 54.5000 1925-11-01 46.8000 1925-12-01 51.7000 1926-01-01 58.7000 1926-02-01 47.1000 1926-03-01 60.2000 1926-04-01 51.2000 1926-05-01 59.8000 1926-06-01 58.5000 1926-07-01 49.4000 1926-08-01 55.7000 1926-09-01 51.5000 1926-10-01 49.0000 1926-11-01 42.2000 1926-12-01 44.9000 1927-01-01 44.3000 1927-02-01 43.5000 1927-03-01 52.1000 1927-04-01 43.2000 1927-05-01 47.3000 1927-06-01 51.2000 1927-07-01 49.6000 1927-08-01 54.1000 1927-09-01 50.1000 1927-10-01 46.8000 1927-11-01 38.8000 1927-12-01 38.3000 1928-01-01 39.8000 1928-02-01 42.0000 1928-03-01 60.6000 1928-04-01 65.8000 1928-05-01 56.6000 1928-06-01 43.5000 1928-07-01 44.7000 1928-08-01 44.3000 1928-09-01 44.2000 1928-10-01 40.2000 1928-11-01 44.8000 1928-12-01 31.5000 1929-01-01 42.3000 1929-02-01 32.6000 1929-03-01 39.6000 1929-04-01 45.5000 1929-05-01 33.6000 1929-06-01 42.2000 1929-07-01 54.3000 1929-08-01 52.4000 1929-09-01 28.0000 1929-10-01 35.5000 1929-11-01 25.4000 1929-12-01 24.3000 1930-01-01 19.5000 1930-02-01 33.8000 1930-03-01 37.8000 1930-04-01 33.7000 1930-05-01 30.9000 1930-06-01 27.2000 1930-07-01 23.5000 1930-08-01 28.4000 1930-09-01 28.4000 1930-10-01 27.8000 1930-11-01 21.5000 1930-12-01 25.1000 1931-01-01 29.8000 1931-02-01 15.8000 1931-03-01 18.6000 1931-04-01 23.0000 1931-05-01 21.2000 1931-06-01 27.5000 1931-07-01 27.1000 1931-08-01 27.3000 1931-09-01 21.9000 1931-10-01 26.9000 1931-11-01 17.4000 1931-12-01 9.00000