Month Dollars Per Pound 1916-01-01 1.15000 1916-02-01 1.25000 1916-03-01 1.30000 1916-04-01 1.35000 1916-05-01 1.35000 1916-06-01 1.40000 1916-07-01 1.45000 1916-08-01 1.50000 1916-09-01 1.50000 1916-10-01 1.50000 1916-11-01 1.55000 1916-12-01 1.55000 1917-01-01 1.70000 1917-02-01 1.75000 1917-03-01 1.80000 1917-04-01 1.85000 1917-05-01 1.90000 1917-06-01 2.00000 1917-07-01 2.05000 1917-08-01 2.25000 1917-09-01 2.30000 1917-10-01 2.50000 1917-11-01 2.60000 1917-12-01 2.65000 1918-01-01 2.75000 1918-02-01 2.75000 1918-03-01 2.80000 1918-04-01 2.90000 1918-05-01 3.05000 1918-06-01 3.10000 1918-07-01 3.25000 1918-08-01 3.50000 1918-09-01 4.00000 1918-10-01 4.00000 1918-11-01 3.25000 1918-12-01 2.75000 1919-01-01 2.65000 1919-02-01 2.55000 1919-03-01 2.55000 1919-04-01 2.70000 1919-05-01 3.00000 1919-06-01 3.02500 1919-07-01 3.29500 1919-08-01 3.62400 1919-09-01 3.75000 1919-10-01 3.78200 1919-11-01 3.90000 1919-12-01 4.00300 1920-01-01 4.10000 1920-02-01 4.05000 1920-03-01 4.05000 1920-04-01 4.10000 1920-05-01 4.10000 1920-06-01 3.90700 1920-07-01 3.30000 1920-08-01 3.25000 1920-09-01 3.00000 1920-10-01 2.75000 1920-11-01 2.48300 1920-12-01 1.98700 1921-01-01 1.90000 1921-02-01 1.80000 1921-03-01 1.75000 1921-04-01 1.80000 1921-05-01 1.80000 1921-06-01 1.80000 1921-07-01 1.80000 1921-08-01 1.80000 1921-09-01 1.80000 1921-10-01 1.75000 1921-11-01 1.70000 1921-12-01 1.65000 1922-01-01 1.95000 1922-02-01 2.00000 1922-03-01 1.90000 1922-04-01 2.00000 1922-05-01 2.10000 1922-06-01 2.10000 1922-07-01 2.00000 1922-08-01 1.95000 1922-09-01 1.96800 1922-10-01 2.10000 1922-11-01 2.20000 1922-12-01 2.25000 1923-01-01 2.30000 1923-02-01 2.30000 1923-03-01 2.30000 1923-04-01 2.35000 1923-05-01 2.30000 1923-06-01 2.30000 1923-07-01 2.25000 1923-08-01 2.20000 1923-09-01 2.20000 1923-10-01 2.20000 1923-11-01 2.15000 1923-12-01 2.15000 1924-01-01 2.15000 1924-02-01 2.15000 1924-03-01 2.20000 1924-04-01 2.20000 1924-05-01 2.20000 1924-06-01 2.15000 1924-07-01 2.10000 1924-08-01 2.05000 1924-09-01 2.15000 1924-10-01 2.25000 1924-11-01 2.30000 1924-12-01 2.30000 1925-01-01 2.44000 1925-02-01 2.37500 1925-03-01 2.29400 1925-04-01 2.22500 1925-05-01 2.08500 1925-06-01 2.03800 1925-07-01 2.07500 1925-08-01 2.07500 1925-09-01 2.07500 1925-10-01 2.03500 1925-11-01 2.06300 1925-12-01 2.05600 1926-01-01 2.05000 1926-02-01 1.95000 1926-03-01 1.91300 1926-04-01 1.87500 1926-05-01 1.82500 1926-06-01 1.79100 1926-07-01 1.78800 1926-08-01 1.80600 1926-09-01 1.81300 1926-10-01 1.81300 1926-11-01 1.81300 1926-12-01 1.79400 1927-01-01 1.77500 1927-02-01 1.77500 1927-03-01 1.77500 1927-04-01 1.77500 1927-05-01 1.77500 1927-06-01 1.73800 1927-07-01 1.75000 1927-08-01 1.77500 1927-09-01 1.77500 1927-10-01 1.79500 1927-11-01 1.77500 1927-12-01 1.77500 1928-01-01 1.80000 1928-02-01 1.85600 1928-03-01 1.87500 1928-04-01 1.87500 1928-05-01 1.91900 1928-06-01 1.94000 1928-07-01 1.95000 1928-08-01 1.90900 1928-09-01 1.82500 1928-10-01 1.82500 1928-11-01 1.82500 1928-12-01 1.82500 1929-01-01 1.84400 1929-02-01 1.83800 1929-03-01 1.83800 1929-04-01 1.83800 1929-05-01 1.81300 1929-06-01 1.72500 1929-07-01 1.72500 1929-08-01 1.72500 1929-09-01 1.80000 1929-10-01 1.80000 1929-11-01 1.78800 1929-12-01 1.66300 1930-01-01 1.63800 1930-02-01 1.59400 1930-03-01 1.58800 1930-04-01 1.57500 1930-05-01 1.53300 1930-06-01 1.51300 1930-07-01 1.50000 1930-08-01 1.46300 1930-09-01 1.45600 1930-10-01 1.43800 1930-11-01 1.40800 1930-12-01 1.31900 1931-01-01 1.32300 1931-02-01 1.31300 1931-03-01 1.31300 1931-04-01 1.31300 1931-05-01 1.28000 1931-06-01 1.22500 1931-07-01 1.24100 1931-08-01 1.26500 1931-09-01 1.21900 1931-10-01 1.14800 1931-11-01 1.13800 1931-12-01 1.11900 1932-01-01 1.11300 1932-02-01 1.11300 1932-03-01 1.08100 1932-04-01 1.04000 1932-05-01 1.02500 1932-06-01 1.00600 1932-07-01 0.908000 1932-08-01 0.873000 1932-09-01 1.04500 1932-10-01 1.04500 1932-11-01 0.978000 1932-12-01 0.920000 1933-01-01 0.906000 1933-02-01 0.888000 1933-03-01 0.888000 1933-04-01 0.895000 1933-05-01 1.17000 1933-06-01 1.25300 1933-07-01 1.35000 1933-08-01 1.51900 1933-09-01 1.57500 1933-10-01 1.57500 1933-11-01 1.57500 1933-12-01 1.57500 1934-01-01 1.57500 1934-02-01 1.57500 1934-03-01 1.57500 1934-04-01 1.55500 1934-05-01 1.53500 1934-06-01 1.53500 1934-07-01 1.53500 1934-08-01 1.39400 1934-09-01 1.33000 1934-10-01 1.31000 1934-11-01 1.31000 1934-12-01 1.31000 1935-01-01 1.29500 1935-02-01 1.29000 1935-03-01 1.26500 1935-04-01 1.26500 1935-05-01 1.27600 1935-06-01 1.34100 1935-07-01 1.41500 1935-08-01 1.41500 1935-09-01 1.44000 1935-10-01 1.49200 1935-11-01 1.52500 1935-12-01 1.53500 1936-01-01 1.52900 1936-02-01 1.58000 1936-03-01 1.60500 1936-04-01 1.53500 1936-05-01 1.53500 1936-06-01 1.54900 1936-07-01 1.50300 1936-08-01 1.48800 1936-09-01 1.48800 1936-10-01 1.49300 1936-11-01 1.61300 1936-12-01 1.75600 1937-01-01 1.82800 1937-02-01 1.83800 1937-03-01 1.83800 1937-04-01 1.85600 1937-05-01 1.81500 1937-06-01 1.81500 1937-07-01 1.81500 1937-08-01 1.81500 1937-09-01 1.73800 1937-10-01 1.64300 1937-11-01 1.53100 1937-12-01 1.48800 1938-01-01 1.48800 1938-02-01 1.41300 1938-03-01 1.41300 1938-04-01 1.41300 1938-05-01 1.41300 1938-06-01 1.41300 1938-07-01 1.42800 1938-08-01 1.43800 1938-09-01 1.43800 1938-10-01 1.43800 1938-11-01 1.43800 1938-12-01 1.33800 1939-01-01 1.31300 1939-02-01 1.31300 1939-03-01 1.31300 1939-04-01 1.31300 1939-05-01 1.33100 1939-06-01 1.35000 1939-07-01 1.35000 1939-08-01 1.35000 1939-09-01 1.65000 1939-10-01 1.88800 1939-11-01 1.75600 1939-12-01 1.69500 1940-01-01 1.70000 1940-02-01 1.52500 1940-03-01 1.52500 1940-04-01 1.52500 1940-05-01 1.52500 1940-06-01 1.52500 1940-07-01 1.52500 1940-08-01 1.52500 1940-09-01 1.56300 1940-10-01 1.61900 1940-11-01 1.62500 1940-12-01 1.62500