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Table 06. Number of NO DAYS LOST (NDL) Injuries and NDL Incidence

 Rates (IR) at Sand and Gravel Operations in the United States,

by Primary Activity, 1978-2007


 

SURFACE MINES

 

Strip

Dredge

Total w/o office

Office

Total

Year

NDLs

IR

NDLs

IR

NDLs

IR

NDLs

IR

NDLs

IR

1978

605

2.35

210

3.52

815

2.57

6

.13

821

2.26

1979

526

1.95

93

1.54

619

1.87

7

.15

626

1.66

1980

308

1.26

72

1.35

380

1.27

2

.04

382

1.11

1981

257

1.22

64

1.41

321

1.25

6

.15

327

1.10

1982

80

.81

23

1.14

103

.87

1

.05

104

.75

1983  1/

215

1.09

24

.59

239

1.01

2

.05

241

.87

1984

252

1.15

33

.78

285

1.09

2

.05

287

.95

1985

306

1.31

40

.94

346

1.25

2

.05

348

1.09

1986

373

1.51

61

1.43

434

1.50

1

.02

435

1.30

1987

498

1.98

102

2.26

600

2.03

2

.04

602

1.75

1988

620

2.43

180

3.84

800

2.65

8

.16

808

2.31

1989

814

3.19

182

3.97

996

3.30

6

.12

1,002

2.85

1990

673

2.68

170

3.56

843

2.82

11

.16

854

2.44

1991

666

2.88

135

2.95

801

2.89

8

.17

809

2.49

1992

619

.68

144

3.13

763

.75

5

.11

768

2.36

1993

565

2.41

130

2.74

695

2.46

6

.13

701

2.13

1994

531

2.16

117

2.38

648

2.20

4

.09

652

1.91

1995

502

2.05

111

2.30

619

2.09

2

.04

621

1.81

1996

511

2.01

105

2.30

616

2.05

3

.06

619

1.79

1997

490

1.86

116

2.48

606

1.95

4

.08

610

1.70

1998

440

1.58

91

1.88

531

1.63

1

.02

532

1.42

1999

447

1.52

74

1.51

521

1.52

4

.08

525

1.33

2000

400

1.37

88

1.82

488

1.43

7

.14

495

1.27

2001

375

1.30

86

1.83

461

1.37

2

.04

463

1.20

2002

335

1.19

80

1.71

415

1.27

1

.02

416

1.10

2003

323

1.17

72

1.52

395

1.22

3

.06

398

1.06

2004

329

1.17

82

1.57

411

1.23

6

.12

417

1.09

2005

344

1.19

61

1.12

405

1.18

5

.10

410

1.05

2006

305

1.04

68

1.25

373

1.07

1

.02

374

.94

2007

242

.85

60

1.18

302

.90

6

.12

308

.80

 

 

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

 




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