Table 02. Average Number of EMPLOYEES at Sand and
Gravel Operations in
the
by Pri
SURFACE MINES |
|||||
Year |
Strip |
Dredge |
Total w/o Office |
Office |
Grand Total |
1978 |
34,405 |
6,164 |
40,569 |
6,043 |
46,612 |
1979 |
37,934 |
6,005 |
43,939 |
6,204 |
50,143 |
1980 |
34,639 |
5,445 |
40,084 |
6,024 |
46,108 |
1981 |
30,936 |
4,789 |
35,725 |
5,769 |
41,494 |
1982 |
24,949 |
4,157 |
29,106 |
4,942 |
34,048 |
1983 1/ |
26,138 |
4,212 |
30,350 |
5,244 |
35,594 |
1984 |
27,891 |
4,360 |
32,251 |
5,409 |
37,660 |
1985 |
29,847 |
4,398 |
34,245 |
5,812 |
40,057 |
1986 |
30,327 |
4,424 |
34,751 |
6,076 |
40,827 |
1987 |
30,562 |
4,667 |
35,229 |
7,115 |
42,344 |
1988 |
30,767 |
4,738 |
35,505 |
6,751 |
42,256 |
1989 |
30,894 |
4,706 |
35,600 |
7,145 |
42,745 |
1990 |
31,048 |
4,851 |
35,899 |
7,369 |
43,268 |
1991 |
29,405 |
4,930 |
34,335 |
7,221 |
41,556 |
1992 |
28,748 |
4,653 |
33,401 |
7,317 |
40,718 |
1993 |
28,170 |
4,697 |
32,867 |
7,148 |
40,015 |
1994 |
29,530 |
4,849 |
34,379 |
7,337 |
41,716 |
1995 |
28,301 |
4,669 |
32,970 |
7,016 |
39,986 |
1996 |
28,643 |
4,509 |
33,152 |
6,814 |
39,966 |
1997 |
29,406 |
4,466 |
33,872 |
6,926 |
40,798 |
1998 |
31,121 |
4,545 |
35,666 |
7,080 |
42,746 |
1999 |
32,581 |
4,713 |
37,294 |
7,567 |
44,861 |
2000 |
33,185 |
4,652 |
37,837 |
7,398 |
45,235 |
2001 |
33,000 |
4,508 |
37,508 |
7,405 |
44,913 |
2002 |
32,578 |
4,477 |
37,055 |
7,196 |
44,251 |
2003 |
31,993 |
4,547 |
36,540 |
7,370 |
43,910 |
2004 |
31,970 |
5,030 |
37,000 |
7,467 |
44,467 |
2005 |
32,615 |
5,090 |
37,705 |
7,535 |
45,240 |
2006 |
33,320 |
5,130 |
38,450 |
7,619 |
46,069 |
2007 |
33,235 |
4,947 |
38,182 |
7,579 |
45,761 |