Total Summary of Coal Production Data by Year
|
| |
1990 |
1991 |
1992 |
1993 |
1994 |
1995 |
1996 |
| Production (Tons) |
46,636,707 |
42,336,144 |
42,563,526 |
40,143,522 |
38,805,087 |
35,901,909 |
36,730,536 |
| Surface Operations |
7,782,211 |
8,087,372 |
8,174,324 |
9,595,504 |
9,370,668 |
8,908,302 |
9,602,117 |
Underground Mines |
38,854,496 |
34,248,772 |
34,389,202 |
30,548,018 |
29,434,419 |
26,993,607 |
27,128,419 |
| Continuous
Miner |
28,856,230 |
25,930,286 |
25,067,015 |
23,300,768 |
22,117,363 |
21,058,021 |
22,215,745 |
| Longwall |
9,998,266 |
8,318,486 |
9,322,187 |
7,247,250 |
7,317,056 |
5,935,586 |
4,912,674 |
| Production
Employees |
10,261 |
9,756 |
9,009 |
9,161 |
8,314 |
6,883 |
6,093 |
| Underground
Operations |
8,748 |
8,141 |
7,680 |
7,698 |
6,772 |
5,640 |
4,952 |
| Surface
Mines |
1,513 |
1,615 |
1,329 |
1,463 |
1,542 |
1,243 |
1,141 |
| Total
Man Hours |
17,826,603 |
16,962,239 |
15,964,553 |
14,610,354 |
18,061,483 |
12,137,106 |
11,543,486 |
| Underground
Operations |
15,423,344 |
14,155,523 |
13,766,984 |
12,083,167 |
15,669,566 |
9,996,517 |
9,047,324 |
| Surface
Mines |
2,403,259 |
2,806,716 |
2,197,569 |
2,527,187 |
2,391,917 |
2,140,589 |
2,496,162 |
| Production
Wages (thousands) |
287,665 |
268,177 |
265,017 |
246,332 |
244,843 |
220,406 |
204,703 |
| Number
of Mines |
486 |
484 |
422 |
412 |
406 |
352 |
325 |
| #
of Producing Mines |
374 |
365 |
297 |
280 |
269 |
237 |
226 |
|
