Month Cents Per Pound 1913-01-01 26.3000 1913-02-01 26.0000 1913-03-01 27.1000 1913-04-01 27.0000 1913-05-01 26.4000 1913-06-01 24.7000 1913-07-01 23.4000 1913-08-01 22.7000 1913-09-01 21.7000 1913-10-01 20.1000 1913-11-01 19.4000 1913-12-01 18.9000 1914-01-01 18.8000 1914-02-01 18.8000 1914-03-01 18.5000 1914-04-01 18.2000 1914-05-01 18.0000 1914-06-01 17.8000 1914-07-01 17.7000 1914-08-01 19.9000 1914-09-01 19.9000 1914-10-01 18.5000 1914-11-01 18.0000 1914-12-01 19.0000 1915-01-01 19.1000 1915-02-01 19.2000 1915-03-01 19.0000 1915-04-01 18.9000 1915-05-01 22.0000 1915-06-01 30.0000 1915-07-01 32.4000 1915-08-01 34.5000 1915-09-01 47.8000 1915-10-01 50.0000 1915-11-01 57.8000 1915-12-01 57.1000 1916-01-01 55.0000 1916-02-01 58.0000 1916-03-01 60.3000 1916-04-01 59.5000 1916-05-01 59.0000 1916-06-01 61.5000 1916-07-01 60.2000 1916-08-01 60.0000 1916-09-01 61.9000 1916-10-01 65.1000 1916-11-01 65.1000 1916-12-01 63.0000 1917-01-01 60.8000 1917-02-01 59.0000 1917-03-01 59.0000 1917-04-01 59.9000 1917-05-01 59.8000 1917-06-01 60.0000 1917-07-01 55.5000 1917-08-01 48.9000 1917-09-01 43.6000 1917-10-01 38.9000 1917-11-01 37.2000 1917-12-01 36.4000 1918-01-01 38.0000 1918-02-01 38.0000 1918-03-01 32.1000 1918-04-01 32.1000 1918-05-01 32.1000 1918-06-01 33.1000 1918-07-01 33.1000 1918-08-01 33.1000 1918-09-01 33.1000 1918-10-01 33.1000 1918-11-01 33.1000 1918-12-01 33.1000 1919-01-01 33.0000 1919-02-01 33.0000 1919-03-01 33.0000 1919-04-01 33.0000 1919-05-01 33.0000 1919-06-01 33.0000 1919-07-01 33.0000 1919-08-01 33.0000 1919-09-01 33.0000 1919-10-01 33.0000 1919-11-01 33.0000 1919-12-01 33.0000 1920-01-01 33.0000 1920-02-01 33.0000 1920-03-01 33.0000 1920-04-01 33.0000 1920-05-01 33.0000 1920-06-01 33.0000 1920-07-01 33.0000 1920-08-01 35.0000 1920-09-01 34.5000 1920-10-01 33.0000 1920-11-01 33.0000 1920-12-01 33.0000 1921-01-01 22.7000 1921-02-01 25.1000 1921-03-01 23.3000 1921-04-01 24.2000 1921-05-01 24.2000 1921-06-01 22.4000 1921-07-01 22.2000 1921-08-01 21.2000 1921-09-01 19.8000 1921-10-01 18.3000 1921-11-01 17.5000 1921-12-01 17.5000 1922-01-01 17.5000 1922-02-01 17.5000 1922-03-01 17.7000 1922-04-01 17.8000 1922-05-01 17.9000 1922-06-01 18.0000 1922-07-01 18.0000 1922-08-01 18.0000 1922-09-01 18.3000 1922-10-01 20.1000 1922-11-01 21.4000 1922-12-01 22.3000 1923-01-01 22.8000 1923-02-01 23.6000 1923-03-01 25.2000 1923-04-01 26.3000 1923-05-01 26.5000 1923-06-01 26.0000 1923-07-01 26.0000 1923-08-01 25.8000 1923-09-01 25.1000 1923-10-01 25.0000 1923-11-01 25.5000 1923-12-01 26.3000 1924-01-01 26.8000 1924-02-01 27.0000 1924-03-01 27.5000 1924-04-01 27.0000 1924-05-01 27.0000 1924-06-01 26.9000 1924-07-01 26.5000 1924-08-01 26.9000 1924-09-01 27.0000 1924-10-01 27.0000 1924-11-01 27.0000 1924-12-01 27.0000 1925-01-01 27.0000 1925-02-01 27.0000 1925-03-01 27.0000 1925-04-01 27.0000 1925-05-01 27.0000 1925-06-01 27.0000 1925-07-01 27.0000 1925-08-01 27.0000 1925-09-01 27.0000 1925-10-01 27.3000 1925-11-01 28.0000 1925-12-01 28.0000 1926-01-01 27.0000 1926-02-01 27.0000 1926-03-01 27.0000 1926-04-01 27.0000 1926-05-01 27.0000 1926-06-01 27.0000 1926-07-01 27.0000 1926-08-01 27.0000 1926-09-01 27.0000 1926-10-01 27.0000 1926-11-01 26.9000 1926-12-01 26.7000 1927-01-01 26.4000 1927-02-01 25.8000 1927-03-01 25.7000 1927-04-01 25.6000 1927-05-01 25.5000 1927-06-01 25.4000 1927-07-01 25.4000 1927-08-01 25.4000 1927-09-01 25.4000 1927-10-01 25.3000 1927-11-01 24.8000 1927-12-01 24.5000 1928-01-01 23.9000 1928-02-01 23.9000 1928-03-01 23.9000 1928-04-01 23.9000 1928-05-01 23.9000 1928-06-01 23.9000 1928-07-01 23.9000 1928-08-01 23.9000 1928-09-01 23.9000 1928-10-01 23.9000 1928-11-01 23.9000 1928-12-01 23.9000 1929-01-01 23.9000 1929-02-01 23.9000 1929-03-01 23.9000 1929-04-01 23.9000 1929-05-01 23.9000 1929-06-01 23.9000 1929-07-01 23.9000 1929-08-01 23.9000 1929-09-01 23.9000 1929-10-01 23.9000 1929-11-01 23.9000 1929-12-01 23.9000 1930-01-01 23.9000 1930-02-01 23.9000 1930-03-01 23.9000 1930-04-01 23.9000 1930-05-01 23.9000 1930-06-01 23.9000 1930-07-01 22.9000 1930-08-01 22.9000 1930-09-01 22.9000 1930-10-01 22.9000 1930-11-01 22.9000 1930-12-01 22.9000 1931-01-01 22.9000 1931-02-01 22.9000 1931-03-01 22.9000 1931-04-01 22.9000 1931-05-01 22.9000 1931-06-01 22.9000 1931-07-01 22.9000 1931-08-01 22.9000 1931-09-01 22.9000 1931-10-01 22.9000 1931-11-01 22.9000 1931-12-01 22.9000 1932-01-01 22.9000 1932-02-01 22.9000 1932-03-01 22.9000 1932-04-01 22.9000 1932-05-01 22.9000 1932-06-01 22.9000 1932-07-01 22.9000 1932-08-01 22.9000 1932-09-01 22.9000 1932-10-01 22.9000 1932-11-01 22.9000 1932-12-01 22.9000 1933-01-01 22.9000 1933-02-01 22.9000 1933-03-01 22.9000 1933-04-01 22.9000 1933-05-01 22.9000 1933-06-01 22.9000 1933-07-01 22.9000 1933-08-01 22.9000 1933-09-01 22.9000 1933-10-01 22.9000 1933-11-01 22.9000 1933-12-01 22.9000 1934-01-01 22.9000 1934-02-01 22.9000 1934-03-01 22.9000 1934-04-01 22.9000 1934-05-01 22.9000 1934-06-01 22.9000 1934-07-01 22.9000 1934-08-01 22.9000 1934-09-01 22.9000