Month Average Price Per Box, In Dollars 1914-01-01 2.38800 1914-02-01 2.05000 1914-03-01 2.25000 1914-04-01 2.20000 1914-05-01 2.77500 1914-06-01 2.78500 1914-07-01 2.90600 1914-08-01 3.12500 1914-09-01 2.91000 1914-10-01 3.21900 1914-11-01 4.00000 1914-12-01 2.75000 1915-01-01 2.15600 1915-02-01 2.31200 1915-03-01 2.16000 1915-04-01 2.48800 1915-05-01 3.12500 1915-06-01 3.20000 1915-07-01 4.03100 1915-08-01 4.65000 1915-09-01 4.68800 1915-10-01 5.21900 1915-11-01 4.80000 1915-12-01 3.00000 1916-01-01 2.71900 1916-02-01 2.52500 1916-03-01 2.40600 1916-04-01 2.28100 1916-05-01 2.37500 1916-06-01 3.60600 1916-07-01 3.96900 1916-08-01 4.40000 1916-09-01 4.81200 1916-10-01 4.82500 1916-11-01 4.87500 1916-12-01 2.96900 1917-01-01 2.42500 1917-02-01 2.65600 1917-03-01 3.12500 1917-04-01 3.25000 1917-05-01 2.82500 1917-06-01 3.65600 1917-07-01 3.87500 1917-08-01 3.83800 1917-09-01 3.43800 1917-10-01 3.32500 1917-11-01 3.47500 1917-12-01 4.09400 1918-01-01 4.87500 1918-02-01 5.78100 1918-03-01 7.21900 1918-04-01 7.02500 1918-05-01 6.59400 1918-06-01 6.66700 1918-07-01 6.68800 1918-08-01 8.12500 1918-09-01 8.50000 1918-10-01 10.6750 1918-11-01 9.50000 1918-12-01 5.78100 1919-01-01 5.37500 1919-02-01 4.31300 1919-03-01 5.25000 1919-04-01 4.85000 1919-05-01 5.00000 1919-06-01 4.37500 1919-07-01 3.85000 1919-08-01 5.18800 1919-09-01 5.17500 1919-10-01 5.25000 1919-11-01 5.00000 1919-12-01 4.30000 1920-01-01 4.78100 1920-02-01 5.15600 1920-03-01 5.80000 1920-04-01 5.75000 1920-05-01 6.18800 1920-06-01 5.45000 1920-07-01 5.62500 1920-08-01 6.50000 1920-09-01 7.50000 1920-10-01 7.87500 1920-11-01 9.05000 1920-12-01 5.15600 1921-01-01 3.90600 1921-02-01 4.12500 1921-03-01 3.77500 1921-04-01 3.62500 1921-05-01 3.95000 1921-06-01 5.40600 1921-07-01 5.34400 1921-08-01 6.15000 1921-09-01 6.43800 1921-10-01 7.15600 1921-11-01 6.72500 1921-12-01 6.09400 1922-01-01 4.95000 1922-02-01 5.09400 1922-03-01 6.90600 1922-04-01 7.31300 1922-05-01 8.25000 1922-06-01 9.18800 1922-07-01 10.1250 1922-08-01 10.4500 1922-09-01 10.4380 1922-10-01 8.70000 1922-11-01 7.37500 1922-12-01 5.15600 1923-01-01 3.80000 1923-02-01 3.84400 1923-03-01 4.40600 1923-04-01 4.62500 1923-05-01 5.35000 1923-06-01 4.96900 1923-07-01 4.77500 1923-08-01 5.21900 1923-09-01 5.75000 1923-10-01 6.30000 1923-11-01 7.59400 1923-12-01 5.50000 1924-01-01 4.51000 1924-02-01 4.03100 1924-03-01 4.81300 1924-04-01 5.17500 1924-05-01 4.53100 1924-06-01 5.28100 1924-07-01 6.52500 1924-08-01 7.09400 1924-09-01 7.20000 1924-10-01 8.00000 1924-11-01 6.68800 1924-12-01 5.70000 1925-01-01 6.15600 1925-02-01 5.78100 1925-03-01 6.23500 1925-04-01 6.40600 1925-05-01 6.84400 1925-06-01 7.52500 1925-07-01 8.21900 1925-08-01 8.50000 1925-09-01 9.52500 1925-10-01 10.4060 1925-11-01 11.4380 1925-12-01 5.40000 1926-01-01 5.09400 1926-02-01 5.25000 1926-03-01 5.55000 1926-04-01 6.09400 1926-05-01 5.71900 1926-06-01 5.92500 1926-07-01 5.90600 1926-08-01 5.70000 1926-09-01 6.59400 1926-10-01 7.06300 1926-11-01 6.77500 1926-12-01 5.78100 1927-01-01 5.68800 1927-02-01 5.75000 1927-03-01 5.35000 1927-04-01 5.34400 1927-05-01 5.92500 1927-06-01 6.40600 1927-07-01 7.15600 1927-08-01 8.32500 1927-09-01 8.84400 1927-10-01 8.93800 1927-11-01 9.60000 1927-12-01 7.59400 1928-01-01 5.82500 1928-02-01 6.18800 1928-03-01 5.71900 1928-04-01 6.68800 1928-05-01 7.80000 1928-06-01 7.75000 1928-07-01 8.20000 1928-08-01 8.90600 1928-09-01 9.00000 1928-10-01 8.75000 1928-11-01 7.34400 1928-12-01 6.00000 1929-01-01 6.47500 1929-02-01 5.59400 1929-03-01 4.96900 1929-04-01 6.05000 1929-05-01 5.68800 1929-06-01 6.37500 1929-07-01 6.60000 1929-08-01 7.40600 1929-09-01 7.50000 1929-10-01 7.70000 1929-11-01 6.96900 1929-12-01 6.90000 1930-01-01 5.90600 1930-02-01 5.71900 1930-03-01 6.78100 1930-04-01 7.55000 1930-05-01 8.15600 1930-06-01 8.34400 1930-07-01 7.87500 1930-08-01 7.28100 1930-09-01 8.42500 1930-10-01 9.09400 1930-11-01 7.43800 1930-12-01 4.55000 1931-01-01 4.90600 1931-02-01 3.92500 1931-03-01 4.05000 1931-04-01 4.18800 1931-05-01 5.03100 1931-06-01 4.70000 1931-07-01 5.28100 1931-08-01 5.68800 1931-09-01 6.12500 1931-10-01 5.87500 1931-11-01 5.31300 1931-12-01 4.22500 1932-01-01 3.87500 1932-02-01 3.75000 1932-03-01 3.67500 1932-04-01 3.67500 1932-05-01 4.02500 1932-06-01 4.87500 1932-07-01 4.46900 1932-08-01 3.95000 1932-09-01 4.06300 1932-10-01 3.47500 1932-11-01 3.30000 1932-12-01 2.82500 1933-01-01 2.86000 1933-02-01 2.75600 1933-03-01 2.76900 1933-04-01 2.48100 1933-05-01 2.71000 1933-06-01 2.91300 1933-07-01 3.37500 1933-08-01 3.38500 1933-09-01 3.19400 1933-10-01 3.12000 1933-11-01 2.96300 1933-12-01 2.81900 1934-01-01 2.87000 1934-02-01 2.91900 1934-03-01 2.89400 1934-04-01 2.71300 1934-05-01 3.16000 1934-06-01 4.21300 1934-07-01 4.03000 1934-08-01 3.85000 1934-09-01 3.90000 1934-10-01 4.79500 1934-11-01 3.73100 1934-12-01 2.83100 1935-01-01 2.81500 1935-02-01 3.08800 1935-03-01 3.12500 1935-04-01 3.31000 1935-05-01 3.10600 1935-06-01 3.20600 1935-07-01 3.31500 1935-08-01 3.39400 1935-09-01 3.41900 1935-10-01 3.68000 1935-11-01 3.68100 1935-12-01 3.39500 1936-01-01 2.98800 1936-02-01 3.36900 1936-03-01 3.36000 1936-04-01 3.32500 1936-05-01 3.36900 1936-06-01 3.36000 1936-07-01 3.68100 1936-08-01 3.86300 1936-09-01 4.20500 1936-10-01 4.45000 1936-11-01 4.17500 1936-12-01 3.44500 1937-01-01 3.96300 1937-02-01 4.38100 1937-03-01 4.16500 1937-04-01 4.36900 1937-05-01 4.48100 1937-06-01 4.97500 1937-07-01 4.84400 1937-08-01 5.01500 1937-09-01 5.18100 1937-10-01 4.88100 1937-11-01 3.74500 1937-12-01 2.86300 1938-01-01 2.46300 1938-02-01 2.73800 1938-03-01 2.57000 1938-04-01 2.75600 1938-05-01 2.92500 1938-06-01 3.46300 1938-07-01 3.27500 1938-08-01 3.23000 1938-09-01 3.15600 1938-10-01 3.19400 1938-11-01 3.56500 1938-12-01 3.33100 1939-01-01 2.50000 1939-02-01 2.90600 1939-03-01 2.99400 1939-04-01 3.08100 1939-05-01 3.21000 1939-06-01 3.44400 1939-07-01 3.18800 1939-08-01 3.39000 1939-09-01 3.98100 1939-10-01 3.52000 1939-11-01 3.64400 1939-12-01 3.09400 1940-01-01 2.55500 1940-02-01 2.80000 1940-03-01 2.70000 1940-04-01 3.17500 1940-05-01 3.05600 1940-06-01 3.50000 1940-07-01 3.37000 1940-08-01 3.24400 1940-09-01 3.17500 1940-10-01 3.33000 1940-11-01 3.68100 1940-12-01 3.47500 1941-01-01 3.01300 1941-02-01 2.80600 1941-03-01 3.00000 1941-04-01 2.96500 1941-05-01 2.91900 1941-06-01 3.20000 1941-07-01 3.35000 1941-08-01 4.06300 1941-09-01 3.88500 1941-10-01 4.38100 1941-11-01 4.07500 1941-12-01 2.98000 1942-01-01 2.75000 1942-02-01 2.60600 1942-03-01 3.10000 1942-04-01 3.31900 1942-05-01 3.10600 1942-06-01 3.85500 1942-07-01 4.06900 1942-08-01 4.34400 1942-09-01 4.31500 1942-10-01 5.05600 1942-11-01 5.16300 1942-12-01 5.35500 1943-01-01 3.77500 1943-02-01 4.72500 1943-03-01 4.80900 1943-04-01 4.84200 1943-05-01 5.12000 1943-06-01 5.38100