1983-2006--Number of Active Mines (employee hours > 0) by Commodity by Year (Data source: MSHA)
Count


Commodity based on CANVASS (computed) Total
1 Coal 2 Metal 3 Nonmetal 4 Stone 5 Sand & gravel
Calendar year of data file (computed) 1983 5,496 940 1,175 3,680 5,589 16,880
1984 5,538 841 1,157 3,718 5,740 16,994
1985 5,256 750 1,156 3,842 6,084 17,088
1986 5,115 711 1,071 3,599 6,200 16,696
1987 4,918 722 1,000 3,605 6,287 16,532
1988 4,674 746 984 3,663 6,415 16,482
1989 4,414 708 970 3,614 6,473 16,179
1990 4,320 640 983 3,650 6,565 16,158
1991 4,025 533 919 3,627 6,563 15,667
1992 3,703 469 855 3,654 6,316 14,997
1993 3,429 429 852 3,681 6,239 14,630
1994 3,268 413 835 3,646 6,199 14,361
1995 2,946 403 809 3,649 6,052 13,859
1996 2,689 381 781 3,655 6,026 13,532
1997 2,609 374 786 3,712 6,201 13,682
1998 2,493 343 801 3,822 6,443 13,902
1999 2,306 334 808 3,962 6,783 14,193
2000 2,124 309 821 4,113 7,046 14,413
2001 2,144 281 785 4,282 7,131 14,623
2002 2,065 256 763 4,311 7,125 14,520
2003 1,972 258 734 4,357 7,070 14,391
2004 2,011 251 741 4,401 7,074 14,478
2005 2,063 263 739 4,490 7,111 14,666
2006 2,113 280 741 4,573 7,178 14,885
Total 81,691 11,635 21,266 93,306 155,910 363,808

Page last updated: 9/26/2008
Page last reviewed: 9/26/2008
Content Source: National Institute for Occupational Safety and Health (NIOSH)