Production and Employment Data by Mine Size
| 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990 | |
| Total for all mines | |||||||||||||||||||
| Number of Mines | 261 | 252 | 269 | 265 | 292 | 295 | 323 | 327 | 341 | 361 | 352 | 355 | 325 | 373 | 405 | 404 | 421 | 494 | 480 |
| Short tons produced | 24,170,134 | 24,905,379 | 29,519,181 | 26,937,574 | 30,486,961 | 31,445,858 | 31,746,140 | 32,600,564 | 33,210,226 | 32,253,994 | 34,001,907 | 36,889,161 | 36,725,571 | 35,917,213 | 38,805,087 | 40,090,564 | 42,561,785 | 42,335,194 | 46,498,814 |
| Number of Employees | 4,394 | 4,358 | 4,782 | 4,764 | 4,501 | 4,353 | 4,956 | 5,261 | 4,926 | 5,456 | 5,802 | 6534 | 6,089 | 6,975 | 8,314 | 9,142 | 9,009 | 9,749 | 10,199 |
| Wages (thousands of dollars) | 248,673 | 211,621 | 238,020 | 208,866 | 197,859 | 179,978 | 183,180 | 194,741 | 176,091 | 165,138 | 190,956 | 206,297 | 204,703 | 220,288 | 245,258 | 246,253 | 265,017 | 268,178 | 287,640 |
| Hours Worked | 9,358,362 | 8,822,478 | 9,774,608 | 9,469,502 | 9,036,446 | 8,584,102 | 11,691,424 | 9,786,846 | 8,815,705 | 9,001,147 | 10,506,272 | 11,491,823 | 11,541,719 | 12,132,597 | 14,813,560 | 14,578,847 | 15,964,553 | 16,952,439 | 17,821,883 |
| Mine Size: Over 500,000 short tons | |||||||||||||||||||
| Number of Mines | 10 | 11 | 10 | 12 | 10 | 13 | 12 | 13 | 14 | 12 | 12 | 13 | 15 | 10 | 18 | 16 | 12 | 9 | 12 |
| Short tons produced | 9,948,622 | 9,693,588 | 12,377,741 | 14,365,264 | 12,854,678 | 14,913,626 | 13,465,938 | 13,634,796 | 15,060,474 | 12,728,019 | 13,666,458 | 14,727,830 | 15,677,531 | 11,946,352 | 15,609,666 | 13,672,122 | 14,127,685 | 11,965,927 | 15,090,683 |
| Number of Employees | 1,398 | 1,319 | 1,504 | 1,590 | 1,233 | 1,369 | 1,246 | 1,480 | 1,453 | 1,291 | 1,366 | 1,455 | 1,702 | 1,598 | 2,782 | 3,329 | 2,637 | 2,377 | 2,656 |
| Wages (thousands of dollars) | 101,347 | 86,647 | 92,517 | 84,391 | 70,268 | 77,889 | 68,724 | 79,059 | 71,961 | 62,132 | 73,287 | 74,676 | 82,374 | 77,771 | 123,099 | 97,502 | 102,577 | 93,099 | 101,995 |
| Hours Worked | 3,215,910 | 2,952,510 | 2,638,755 | 3,486,070 | 2,967,254 | 3,200,007 | 2,757,846 | 3,423,806 | 3,279,765 | 2,761,389 | 3,121,015 | 3,456,122 | 3,932,924 | 3,562,945 | 5,064,932 | 5,027,474 | 5,572,441 | 5,097,134 | 5,715,636 |
| Mine Size: 100,000-499,999 short tons | |||||||||||||||||||
| Number of Mines | 47 | 51 | 55 | 52 | 61 | 55 | 56 | 59 | 62 | 65 | 68 | 76 | 72 | 79 | 81 | 90 | 93 | 97 | 111 |
| Short tons produced | 11,793,900 | 12,419,538 | 14,363,308 | 12,993,934 | 14,708,477 | 13,860,897 | 14,791,365 | 14,764,826 | 15,030,270 | 15,354,784 | 15,888,412 | 17,570,078 | 16,507,450 | 18,610,497 | 17,695,489 | 20,432,040 | 21,838,564 | 22,035,933 | 22,872,308 |
| Number of Employees | 1,976 | 1,861 | 2,081 | 1,906 | 2,063 | 1,773 | 2,144 | 2,142 | 2,060 | 2,268 | 2,569 | 2,876 | 2,579 | 3,016 | 2,974 | 3,468 | 3,744 | 3,784 | 4,217 |
| Wages (thousands of dollars) | 107,546 | 96,760 | 113,846 | 95,180 | 97,051 | 80,661 | 86,671 | 87,622 | 80,862 | 74,947 | 85,717 | 102,046 | 91,736 | 105,426 | 90,616 | 111,427 | 124,095 | 127,532 | 136,810 |
| Hours Worked | 4,733,856 | 4,385,473 | 4,756,252 | 4,285,869 | 4,466,653 | 4,035,508 | 4,346,266 | 4,546,449 | 4,189,613 | 4,376,167 | 5,420,538 | 5,911,249 | 5,458,054 | 6,005,891 | 6,799,800 | 6,735,747 | 7,486,233 | 7,719,997 | 8,332,973 |
| Mine Size: 50,000-99,999 short tons | |||||||||||||||||||
| Number of Mines | 21 | 25 | 21 | 25 | 21 | 21 | 32 | 37 | 24 | 37 | 46 | 42 | 40 | 54 | 48 | 54 | 61 | 79 | 79 |
| Short tons produced | 1,463,894 | 1,824,645 | 1,500,844 | 1,757,924 | 1,526,282 | 1,429,568 | 2,259,931 | 2,753,952 | 1,625,925 | 2,774,336 | 3,308,674 | 2,931,648 | 2,925,249 | 3,923,766 | 3,485,044 | 3,920,992 | 4,465,810 | 5,480,330 | 5,507,764 |
| Number of Employees | 289 | 426 | 366 | 430 | 411 | 411 | 497 | 655 | 361 | 798 | 924 | 773 | 693 | 1,173 | 923 | 1,021 | 1,255 | 1,571 | 1,434 |
| Wages (thousands of dollars) | 14,046 | 12,460 | 14,265 | 11,311 | 15,871 | 9,931 | 14,250 | 18,192 | 8,363 | 15,104 | 22,270 | 17,015 | 18,587 | 27,051 | 19,525 | 22,370 | 25,226 | 29,188 | 30,576 |
| Hours Worked | 604,384 | 697,459 | 664,656 | 739,561 | 783,637 | 711,280 | 3,907,954 | 1,073,781 | 590,860 | 1,026,521 | 1,289,957 | 1,204,732 | 1,303,018 | 1,793,822 | 1,974,835 | 1,670,264 | 1,871,979 | 2,589,323 | 2,386,858 |
| Mine Size: 10,000-49,999 short tons | |||||||||||||||||||
| Number of Mines | 27 | 30 | 38 | 36 | 43 | 37 | 43 | 48 | 52 | 49 | 43 | 51 | 51 | 47 | 67 | 64 | 65 | 103 | 100 |
| Short tons produced | 811,731 | 845,256 | 1,112,125 | 967,302 | 1,291,843 | 1,098,289 | 1,100,390 | 1,260,831 | 1,334,718 | 1,245,477 | 951,325 | 1,475,567 | 1,433,798 | 1,267,286 | 1,804,742 | 1,867,211 | 1,834,821 | 2,573,733 | 2,742,845 |
| Number of Employees | 354 | 410 | 414 | 471 | 500 | 532 | 679 | 601 | 643 | 748 | 495 | 896 | 695 | 635 | 1,057 | 864 | 892 | 1,379 | 1,386 |
| Wages (thousands of dollars) | 6,579 | 7,393 | 9,174 | 10,346 | 9,648 | 7,113 | 8,653 | 7,947 | 9,970 | 8,585 | 5,871 | 7,820 | 8,942 | 7,932 | 9,658 | 11,607 | 11,069 | 14,857 | 15,941 |
| Hours Worked | 387,403 | 386,744 | 408,778 | 585,109 | 608,315 | 420,345 | 425,886 | 523,550 | 576,029 | 616,062 | 410,409 | 628,000 | 642,094 | 601,695 | 810,070 | 892,008 | 856,666 | 1,282,995 | 1,219,336 |
| Mine Size: 1- 9,999 short tons | |||||||||||||||||||
| Number of Mines | 34 | 27 | 38 | 31 | 32 | 26 | 31 | 47 | 51 | 38 | 51 | 55 | 46 | 54 | 55 | 51 | 65 | 76 | 71 |
| Short tons produced | 151,987 | 122,351 | 165,164 | 140,958 | 105,681 | 143,478 | 128,516 | 186,159 | 158,839 | 151,378 | 187,038 | 184,038 | 181,543 | 169,312 | 210,146 | 198,199 | 294,905 | 279,271 | 285,214 |
| Number of Employees | 181 | 135 | 270 | 176 | 193 | 154 | 221 | 283 | 302 | 234 | 361 | 382 | 303 | 446 | 459 | 423 | 440 | 587 | 469 |
| Wages (thousands of dollars) | 10,361 | 981 | 2,013 | 1,527 | 1,369 | 751 | 1,059 | 1,309 | 2,621 | 1,382 | 1,753 | 2,140 | 1,524 | 1,429 | 2,008 | 3,162 | 1,714 | 2,836 | 2,156 |
| Hours Worked | 114,420 | 106,863 | 104,976 | 86,358 | 43,722 | 42,308 | 72,509 | 101,133 | 80,979 | 81,451 | 158,255 | 139,898 | 132,264 | 115,097 | 138,477 | 239,183 | 154,646 | 218,007 | 150,721 |
| Mine Size: Licensed mines having zero tons production | |||||||||||||||||||
| Number of Mines | 122 | 108 | 107 | 97 | 125 | 143 | 149 | 123 | 138 | 160 | 132 | 118 | 101 | 129 | 136 | 129 | 125 | 130 | 107 |
| Short tons produced | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Number of Employees | 196 | 209 | 147 | 191 | 101 | 114 | 169 | 100 | 107 | 117 | 87 | 152 | 117 | 107 | 119 | 37 | 41 | 51 | 37 |
| Wages (thousands of dollars) | 8,795 | 7,379 | 6,204 | 6,111 | 3,653 | 3,634 | 3,823 | 613 | 2,315 | 2,988 | 2,058 | 2,600 | 1,540 | 679 | 352 | 185 | 336 | 666 | 162 |
| Hours Worked | 302,389 | 293,914 | 259,788 | 286,535 | 166,865 | 174,654 | 180,963 | 118,127 | 98,459 | 139,827 | 106,098 | 151,822 | 73,365 | 53,147 | 25,446 | 14,171 | 22,588 | 44,983 | 16,359 |