Table 03. EMPLOYEE HOURS worked at Nonmetallic Operations
in the
Year |
Underground
Mines |
Surface
Mines |
|||||
|
Underground |
Surf
at UG |
Total |
Strip |
Dredge |
Other |
Total |
1978 |
11,438,025 |
2,179,736 |
13,617,761 |
20,783,131 |
38,710 |
495,864 |
21,317,705 |
1979 |
12,306,045 |
2,589,525 |
14,895,570 |
26,960,041 |
8,563 |
435,598 |
21,404,202 |
1980 |
12,358,364 |
3,425,920 |
15,784,284 |
21,693,176 |
8,770 |
235,872 |
21,937,818 |
1981 |
12,643,607 |
3,937,086 |
16,580,693 |
20,871,842 |
11,924 |
44,316 |
20,928,082 |
1982 |
10,608,220 |
4,100,370 |
14,708,590 |
13,558,942 |
23,056 |
39,470 |
13,621,468 |
1983 1/ |
8,098,523 |
1,499,524 |
9,598,047 |
13,541,934 |
245,367 |
34,541 |
13,821,842 |
1984 |
8,455,444 |
1,468,839 |
9,924,283 |
14,969,337 |
457,948 |
34,271 |
15,461,556 |
1985 |
7,637,052 |
1,356,430 |
8,993,482 |
14,267,580 |
433,691 |
34,162 |
14,735,433 |
1986 |
6,826,953 |
1,271,831 |
8,098,784 |
12,760,161 |
395,473 |
20,687 |
13,176,321 |
1987 |
6,617,507 |
1,251,169 |
7,868,676 |
12,694,901 |
250,355 |
- |
12,945,256 |
1988 |
7,273,046 |
1,299,567 |
8,572,613 |
13,027,611 |
263,395 |
- |
13,291,006 |
1989 |
7,578,462 |
1,394,173 |
8,972,635 |
13,015,545 |
288,386 |
- |
13,303,931 |
1990 |
7,609,520 |
1,426,264 |
9,035,784 |
12,932,823 |
72,321 |
- |
13,005,144 |
1991 |
7,419,300 |
1,217,164 |
8,636,464 |
12,168,823 |
184,038 |
- |
12,352,861 |
1992 |
7,253,717 |
1,262,899 |
8,516,616 |
11,353,982 |
157,344 |
- |
11,511,326 |
1993 |
6,710,232 |
1,202,545 |
7,912,777 |
10,881,579 |
39,857 |
- |
10,921,436 |
1994 |
6,659,681 |
1,349,121 |
8,008,802 |
11,215,499 |
26,590 |
- |
11,242,089 |
1995 |
6,486,790 |
1,142,803 |
7,629,593 |
11,337,739 |
24,473 |
- |
11,362,212 |
1996 |
6,602,819 |
1,196,274 |
7,799,093 |
11,658,440 |
29,247 |
- |
11,687,687 |
1997 |
6,457,444 |
823,770 |
7,281,214 |
11,420,435 |
29,578 |
- |
11,450,013 |
1998 |
5,862,116 |
737,269 |
6,599,385 |
11,384,645 |
93,468 |
- |
11,478,113 |
1999 |
5,437,330 |
836,185 |
6,273,515 |
10,937,456 |
118,365 |
34,912 |
11,090,733 |
2000 |
5,052,716 |
794,600 |
5,847,316 |
11,065,553 |
31,814 |
- |
11,097,367 |
2001 |
5,183,266 |
795,107 |
5,978,373 |
10,305,812 |
33,761 |
- |
10,339,573 |
2002 |
4,551,443 |
595,754 |
5,147,197 |
9,803,565 |
3,628 |
36,644 |
9,843,837 |
2003 |
4,607,584 |
657,552 |
5,265,136 |
9,697,640 |
89,813 |
30,918 |
9,818,371 |
2004 |
4,882,067 |
703,067 |
5,585,134 |
9,767,613 |
61,190 |
29,021 |
9,857,824 |
2005 |
4,779,692 |
746,577 |
5,526,269 |
9,456,852 |
169,819 |
31,804 |
9,658,475 |
2006 |
4,830,187 |
732,330 |
5,562,517 |
9,467,508 |
99,367 |
33,410 |
9,600,285 |
2007 |
4,955,690 |
784,587 |
5,740,277 |
9,212,741 |
205,526 |
33,469 |
9,451,736 |
Table 03. EMPLOYEE
HOURS worked at Nonmetallic Operations
in the
Year |
Total
Mining |
Indp
Shops/Yrds |
Mills |
Total
w/o Office |
Office |
Grand
Total |
1978 |
34,935,466 |
169,429 |
51,763,083 |
86,867,978 |
13,982,793 |
100,850,771 |
1979 |
36,299,772 |
221,416 |
49,296,791 |
85,817,979 |
14,079,964 |
99,897,943 |
1980 |
37,722,102 |
20,934 |
46,325,866 |
84,068,902 |
13,237,153 |
97,306,055 |
1981 |
37,508,775 |
20,457 |
48,315,466 |
85,844,698 |
13,434,373 |
99,279,071 |
1982 |
28,330,058 |
26,347 |
32,595,385 |
60,951,790 |
11,236,241 |
72,188,031 |
1983 1/ |
23,419,889 |
22,630 |
35,796,479 |
59,238,998 |
10,835,475 |
70,074,473 |
1984 |
25,385,839 |
76,594 |
37,910,675 |
63,373,108 |
10,219,766 |
73,592,874 |
1985 |
23,728,915 |
57,331 |
36,478,821 |
60,265,067 |
9,774,470 |
70,039,537 |
1986 |
21,275,105 |
54,027 |
33,962,953 |
55,292,085 |
8,842,744 |
64,134,829 |
1987 |
20,813,932 |
41,516 |
34,262,951 |
55,118,399 |
8,626,196 |
63,744,595 |
1988 |
21,863,619 |
35,439 |
35,652,835 |
57,551,893 |
8,692,185 |
66,244,078 |
1989 |
22,276,566 |
9,083 |
35,732,634 |
58,018,283 |
8,773,429 |
66,791,712 |
1990 |
22,040,928 |
- |
35,207,673 |
57,248,601 |
8,793,214 |
66,041,815 |
1991 |
20,989,325 |
- |
34,220,388 |
55,209,713 |
8,528,409 |
63,738,122 |
1992 |
20,027,942 |
- |
33,274,280 |
53,302,222 |
8,178,059 |
61,480,281 |
1993 |
18,834,213 |
- |
31,597,388 |
50,431,601 |
7,829,213 |
58,260,814 |
1994 |
19,250,891 |
- |
31,912,938 |
51,163,829 |
8,433,903 |
59,597,732 |
1995 |
18,991,805 |
- |
32,110,896 |
51,102,701 |
8,171,338 |
59,274,039 |
1996 |
19,486,780 |
- |
32,240,194 |
51,726,974 |
8,276,264 |
60,003,238 |
1997 |
18,731,227 |
- |
32,224,515 |
50,955,742 |
8,228,283 |
59,184,025 |
1998 |
18,077,498 |
- |
31,420,711 |
49,498,209 |
7,685,556 |
57,183,765 |
1999 |
17,364,248 |
- |
29,854,780 |
47,219,028 |
7,438,658 |
54,657,686 |
2000 |
16,944,683 |
- |
28,960,221 |
45,904,904 |
7,188,867 |
53,093,771 |
2001 |
16,317,946 |
- |
27,301,597 |
43,619,543 |
6,940,732 |
50,560,275 |
2002 |
14,991,034 |
- |
26,066,072 |
41,057,106 |
6,481,979 |
47,539,085 |
2003 |
15,083,507 |
- |
25,543,639 |
40,627,146 |
6,241,688 |
46,868,834 |
2004 |
15,442,958 |
- |
24,922,719 |
40,365,677 |
6,488,265 |
46,853,942 |
2005 |
15,184,744 |
- |
24,843,443 |
40,028,187 |
6,188,882 |
46,217,069 |
2006 |
15,162,802 |
- |
24,911,555 |
40,074,357 |
6,367,770 |
46,442,127 |
2007 |
15,192,013 |
- |
24,690,048 |
39,882,061 |
6,648,748 |
46,530,809 |
1/
Beginning in 1983, only operator data are available at this level of detail.