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Table 02. Average Number of EMPLOYEES at Nonmetallic

Operations in the United States, by Primary Activity, 1978-2007

 

 

Year

Underground Mines

Surface Mines

 

Underground

Surf at UG

Total

Strip

Dredge

Other

Total

1978

6,082

1,232

7,314

11,346

28

290

11,664

1979

6,144

1,531

7,675

11,587

13

245

11,845

1980

6,612

2,322

8,934

12,068

13

386

12,467

1981

6,546

2,741

9,287

12,138

15

21

12,174

1982

5,736

2,231

7,967

9,497

11

18

9,526

1983 1/

4,220

814

5,034

7,521

78

17

7,616

1984

4,303

737

5,040

8,392

153

17

8,562

1985

3,858

721

4,579

8,942

192

16

9,150

1986

3,578

673

4,251

7,495

185

11

7,691

1987

3,323

631

3,954

6,869

185

-

7,054

1988

3,475

648

4,123

6,919

140

-

7,059

1989

3,703

714

4,417

7,016

176

-

7,192

1990

3,797

716

4.513

7,106

42

-

7,148

1991

3,644

637

4,281

6,590

80

-

6,670

1992

3,594

644

4,238

6,125

71

-

6,196

1993

3,317

614

3,931

5,967

20

-

5,987

1994

3,236

634

3,870

6,778

14

-

6,792

1995

3,345

559

3,904

5,821

11

-

5,832

1996

3,166

575

3,741

5,936

12

-

5,948

1997

3,082

422

3,504

5,808

13

-

5,821

1998

2,908

383

3,291

5,659

41

-

5,700

1999

2,745

416

3,161

5,602

57

12

5,671

2000

2,456

378

2,834

5,773

13

-

5,786

2001

2,429

411

2,840

5,550

11

-

5,561

2002

2,272

310

2,582

5,117

2

19

5,138

2003

2,188

301

2,489

5,048

43

13

5,104

2004

2,289

325

2,614

4,995

35

12

5,042

2005

2,330

376

2,706

4,994

86

13

5,093

2006

2,374

361

2,735

4,880

48

13

4,941

2007

2,411

403

2,814

4,705

92

14

4,811


 

Table 02. Average Number of EMPLOYEES at Nonmetallic

Operations in the United States, by Primary Activity, 1978-2007 continued:

 

 

Year

Total Mining

Indp Shops/Yrds

Mills

Total w/o Office

Office

Grand Total

1978

18,978

89

26,404

45,471

7,536

53,007

1979

19,520

134

25,808

45,462

7,777

53,239

1980

21,401

13

24,720

46,134

7,446

53,580

1981

21,461

10

25,157

46,628

7,427

54,055

1982

17,493

15

20,439

37,947

7,194

45,141

1983 1/

12,650

10

18,067

30,727

5,882

36,609

1984

13,602

33

18,906

32,541

5,537

38,078

1985

13,729

26

17,964

31,719

5,283

37,002

1986

11,942

28

17,357

29,327

4,778

34,105

1987

11,008

18

16,820

27,846

4,580

32,426

1988

11,182

17

17,178

28,377

4,543

32,920

1989

11,609

5

17,238

28,852

4,678

33,530

1990

11,661

-

17,376

28,037

4,781

33,818

1991

10,951

-

16,521

27,472

4,740

32,212

1992

10,434

-

16,065

26,499

4,544

32,212

1993

9,918

-

16,194

26,112

4,345

30,457

1994

10,662

-

15,326

25,988

4,405

30,393

1995

9,736

-

15,399

25,135

4,306

29,441

1996

9,689

-

15,193

24,882

4,204

29,086

1997

9,325

-

15,070

24,395

4,233

28,628

1998

8,991

-

14,634

23,625

4,016

27,641

1999

8,832

-

14,081

22,913

3,931

26,844

2000

8,620

-

13,495

22,115

3,803

25,918

2001

8,401

-

12,945

21,346

3,683

25,029

2002

7,720

-

12,225

19,945

3,471

23,416

2003

7,593

-

11,814

19,407

3,363

22,770

2004

7,656

-

11,776

19,432

3,412

22,844

2005

7,799

-

11,879

19,678

3,361

23,039

2006

7,676

-

11,938

19,614

3,437

23,051

2007

7,625

-

11,694

19,319

3,545

22,864

 

1/ Beginning in 1983, only operator data are available at this level of detail.