Grayson County Historical Production Figures |
| YEAR | SURFACE | UNDERGROUND | TOTAL |
| 1948 | 9,211 | - | 9,211 |
| 1949 | 402,977 | - | 402,977 |
| 1950 | 154,694 | - | 154,694 |
| 1951 | 16,000 | - | 16,000 |
| 1954 | - | 5,000 | 5,000 |
| 1955 | 500 | - | 500 |
| 1956 | 400 | - | 400 |
| 1957 | 1,125 | - | 1,125 |
| 1958 | 1,886 | - | 1,886 |
| 1960 | 2,373 | - | 2,373 |
| 1961 | 3,040 | - | 3,040 |
| 1962 | 1,600 | - | 1,600 |
| 1963 | 300 | - | 300 |
| 1964 | 175 | - | 175 |
| 1975 | 40,292 | - | 40,292 |
| 1976 | 11,311 | - | 11,311 |
| 1977 | 63,500 | - | 63,500 |
| 1978 | 70,173 | - | 70,173 |
| 1979 | 69,535 | - | 69,535 |
| 1980 | 25,668 | - | 25,668 |
| 1982 | 1,866 | - | 1,866 |
| 1984 | 2,000 | - | 2,000 |
| 1985 | 39,562 | - | 39,562 |
| *NOTE: Source: |