| Month | Year | Condition | Price | |
 | Dec | 1972 | Good | $12.49 |
 | Mar | 1973 | Good | $12.64 |
 | Mar | 1973 | Fair | $8.52 |
 | Apr | 1973 | Fair | $8.46 |
 | Aug | 1973 | Very Good | $15.70 |
 | Feb | 1974 | Very Good | $7.88 |
 | Apr | 1975 | Fair | $8.21 |
 | May | 1975 | Good | $12.05 |
 | Sep | 1975 | Fair | $18.58 |
 | Oct | 1975 | Good | $12.33 |
 | Jan | 1976 | Good | $9.62 |
 | Feb | 1976 | Good | $8.34 |
 | Apr | 1976 | Good | $6.50 |
 | May | 1976 | Good | $5.65 |
 | Aug | 1976 | Good | $4.26 |
 | Sep | 1976 | Good | $4.86 |
 | Oct | 1976 | Good | $5.39 |
 | Nov | 1976 | Good | $5.86 |
 | Nov | 1976 | Good | $5.86 |
 | Dec | 1976 | Good | $6.38 |