Quarter	Cents Per Pound
1890-01-01	17.5000
1890-04-01	17.5000
1890-07-01	20.0000
1890-10-01	20.0000
1891-01-01	18.0000
1891-04-01	17.0000
1891-07-01	16.0000
1891-10-01	15.0000
1892-01-01	13.5000
1892-04-01	15.0000
1892-07-01	15.0000
1892-10-01	14.0000
1893-01-01	14.0000
1893-04-01	14.0000
1893-07-01	13.5000
1893-10-01	12.5000
1894-01-01	12.0000
1894-04-01	12.0000
1894-07-01	11.0000
1894-10-01	11.2500
1895-01-01	11.2500
1895-04-01	11.2500
1895-07-01	12.7500
1895-10-01	14.2500
1896-01-01	13.2500
1896-04-01	13.5000
1896-07-01	14.0000
1896-10-01	13.5000
1897-01-01	14.0000
1897-04-01	14.0000
1897-07-01	13.5000
1897-10-01	13.5000
1898-01-01	13.0000
1898-04-01	14.0000
1898-07-01	14.0000
1898-10-01	14.0000
1899-01-01	15.0000
1899-04-01	20.0000
1899-07-01	19.0000
1899-10-01	19.0000
1900-01-01	18.5000
1900-04-01	18.5000
1900-07-01	17.5000
1900-10-01	17.5000
1918-01-01	26.3000
1918-04-01	26.4000
1918-07-01	28.8000
1918-10-01	29.0000
1919-01-01	20.2000
1919-04-01	18.3000
1919-07-01	26.0000
1919-10-01	24.4000
1920-01-01	22.9000
1920-04-01	23.0000
1920-07-01	23.0000
1920-10-01	18.6000
1921-01-01	15.6000
1921-04-01	15.2000
1921-07-01	14.3000
1921-10-01	15.2000
1922-01-01	15.2000
1922-04-01	15.2000
1922-07-01	15.9000
1922-10-01	16.2000
1923-01-01	18.1000
1923-04-01	19.2000
1923-07-01	16.9000
1923-10-01	15.6000
1924-01-01	15.9000
1924-04-01	15.7000
1924-07-01	15.5000
1924-10-01	16.0000