Skip to content


Table 02. Average Number of EMPLOYEES at Stone Operations

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

 

 

 

Underground Mines

 

Surface Mines

 

Year

Underground

Surf at UG

Total

Strip

Dredge

Other

Total

1978

1,882

528

2,410

35,657

342

-

35,999

1979

1,921

479

2,400

38,731

371

-

39,102

1980

1,876

434

2,310

37,402

296

-

37,698

1981

1,649

432

2,081

34,069

323

-

34,392

1982

1,474

450

1,924

29,039

201

-

29,240

1983 [1]

1,357

411

1,768

29,336

151

-

29,487

1984

1,494

396

1,890

30,917

184

-

31,101

1985

1,435

432

1,867

31,823

237

-

32,060

1986

1,470

361

1,831

31,428

199

-

31,627

1987

1,486

392

1,878

31,074

217

-

31,291

1988

1,469

452

1,921

30,970

147

-

31,117

1989

1,537

482

2,019

29,746

166

-

29,912

1990

1,547

492

2,039

28,949

178

-

29,127

1991

1,495

449

1,944

27,521

111

-

27,632

1992

1,504

489

1,993

27,465

85

-

27,550

1993

1,535

454

1,989

27,843

87

-

27,930

1994

1,617

339

1,956

29,282

97

-

29,379

1995

1,617

323

1,940

28,928

100

-

29,028

1996

1,582

290

1,872

28,225

108

-

28,333

1997

1,650

289

1,939

29,010

95

-

29,105

1998

1,727

334

2,061

30,024

54

-

30,078

1999

1,743

356

2,099

31,221

42

-

31,263

2000

1,816

415

2,231

32,030

71

5

32,106

2001

1,810

419

2,229

32,222

89

-

32,311

2002

1,829

453

2,282

35,533

60

-

32,593

2003

1,746

372

2,118

32,425

54

-

32,479

2004

1,768

408

2,176

32,968

37

-

33,005

2005

1,889

363

2,252

34,263

27

-

34,290

2006

1,877

424

2,301

35,464

24

-

35,488

2007

1,845

446

2,291

35,391

31

-

35,422


 

 

Table 02. Average Number of EMPLOYEES at Stone 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

38,409

325

45,427

84,161

11,870

96,031

1979

41,502

298

48,370

90,170

12,482

102,652

1980

40,008

214

46,969

87,191

12,487

99,678

1981

36,473

165

43,792

80,430

11,861

92,291

1982

31,164

155

36,762

68,081

10,928

79,009

1983 1/

31,255

139

35,640

67,034

10,694

77,728

1984

32,991

146

36,797

69,934

11,014

80,948

1985

33,927

159

36,703

70,789

11,031

81,820

1986

33,458

144

35,629

69,231

11,049

80,280

1987

33,169

163

35,313

68,645

10,690

79,335

1988

33,038

233

36,075

69,346

10,675

80,021

1989

31,931

229

35,658

67,818

10,963

78,781

1990

31,166

205

35,486

66,857

11,089

77,946

1991

29,576

169

34,080

63,825

10,971

74,796

1992

29,543

178

33,393

63,114

10,914

74,028

1993

29,919

169

33,088

63,176

11,013

74,189

1994

31,335

262

33,030

64,627

10,723

75,350

1995

30,968

283

34,083

65,334

10,604

75,938

1996

30,205

298

34,953

65,456

10,563

76,019

1997

31,044

289

35,417

66,750

10,840

77,590

1998

32,139

283

36,077

68,499

11,078

79,577

1999

33,362

263

36,105

69,730

11,683

81,413

2000

34,337

239

36,040

70,616

11,763

82,379

2001

34,540

248

35,342

70,130

11,457

81,587

2002

34,875

265

33,703

68,843

11,711

80,554

2003

34,597

259

33,181

68,037

11,370

79,407

2004

35,181

299

32,937

68,417

11,189

79,606

2005

36,542

289

32,928

69,759

11,246

81,005

2006

37,789

274

33,090

71,153

11,430

82,583

2007

37,713

273

32,925

70,911

11,807

82,718

 



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