Hancock County Historical Production Figures |
| YEAR | SURFACE | UNDERGROUND | TOTAL |
| 1946 | 77,250 | 31,940 | 109,190 |
| 1947 | 180,000 | 46,280 | 226,280 |
| 1948 | 180,000 | 49,845 | 229,845 |
| 1949 | 198,278 | 48,500 | 246,778 |
| 1950 | 25,926 | 205,236 | 231,162 |
| 1951 | 48,308 | 680 | 48,988 |
| 1952 | 60,000 | - | 60,000 |
| 1955 | 3,215 | 150 | 3,365 |
| 1956 | 2,980 | - | 2,980 |
| 1957 | 48,901 | - | 48,901 |
| 1958 | 24,395 | - | 24,395 |
| 1959 | 118,511 | - | 118,511 |
| 1960 | 3,152 | - | 3,152 |
| 1962 | 3,330 | - | 3,330 |
| 1963 | 26,126 | - | 26,126 |
| 1964 | 3,759 | - | 3,759 |
| 1965 | 5,000 | - | 5,000 |
| 1971 | 73,000 | - | 73,000 |
| 1972 | 38,084 | - | 38,084 |
| 1974 | 43,392 | - | 43,392 |
| 1975 | 261,088 | - | 261,088 |
| 1976 | 130,602 | - | 130,602 |
| 1977 | 32,928 | - | 32,928 |
| 1978 | 122,356 | - | 122,356 |
| 1980 | 33,011 | - | 33,011 |
| 1981 | 174,342 | - | 174,342 |
| 1982 | 109,625 | - | 109,625 |
| 1984 | 96,076 | - | 96,076 |
| 1985 | 266,759 | - | 266,759 |
| 1986 | 158,981 | - | 158,981 |
| 1987 | 61,023 | - | 61,023 |
| 1988 | 13,092 | - | 13,092 |
| 1990 | 42,096 | - | 42,096 |
| 1991 | 62,506 | - | 62,506 |
| *NOTE: Source: |