Impact of Technological Change and Productivity on The
Coal Market
Table 6. Coal Industry Investment Data, 1987-1997
|
Mine Type |
Production (Million |
Productivity (Short Tons per Miner |
Production, Development, and Exploration |
Shipment Value |
Capital Expenditures (Million |
Ratio of Expenditures to Shipments |
|---|---|---|---|---|---|---|
|
Bituminous and Lignite Surface |
||||||
|
1987 |
545.3 |
4.98 |
99.5 |
17,480.7 |
945.3 |
0.054 |
|
1992 |
590.3 |
6.59 |
90.9 |
15,075.7 |
982.8 |
0.065 |
|
1997 |
669.3 |
9.46 |
64.7 |
12,208.6 |
753.5 |
0.062 |
|
Bituminous Underground |
||||||
|
1987 |
372.9 |
2.20 |
149.9 |
15,056.9 |
1,126.7 |
0.075 |
|
1992 |
407.2 |
2.93 |
126.0 |
13,750.4 |
1,102.7 |
0.080 |
|
1997 |
420.7 |
3.83 |
91.6 |
10,603.1 |
1,203.1 |
0.113 |
|
Surface and Underground (Combined) |
||||||
|
1987 |
918.8 |
3.3 |
249.4 |
32,537.6 |
2,072.0 |
0.064 |
|
1992 |
997.5 |
4.4 |
216.9 |
28,826.1 |
2,085.5 |
0.072 |
|
1997 |
1,090.0 |
6.0 |
156.3 |
22,811.7 |
1,956.6 |
0.086 |
| Sources: U.S. Census Bureau, Bituminous Coal and Lignite Surface Mining 1997, EC97N-21211A, and Bituminous Coal Underground 1997, EC97N-2121B (Washington, DC, October 1999); and U.S. Census Bureau, 1992 Census of Mineral Industries, Coal Mining, MIC92-I-12A (Washington, DC, July 1995), and prior issues. | ||||||
Forecast