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

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

 

NDLs

IR

NDLs

IR

NDLs

IR

NDLs

IR

NDLs

IR

NDLs

IR

NDLs

IR

1978

226

3.95

64

5.87

290

4.26

263

2.53

1

5.17

20

8.07

284

2.66

1979

220

3.58

45

3.48

265

3.56

209

1.99

-

-

3

1.38

212

1.98

1980

242

3.92

53

3.09

295

3.74

195

1.80

-

-

3

2.54

198

1.81

1981

164

2.59

85

4.32

249

3.00

144

1.38

-

-

-

-

144

1.38

1982

140

2.64

41

2.00

181

2.46

140

2.07

-

-

-

-

140

2.06

1983  1/

106

2.62

16

2.13

122

2.54

84

1.24

1

.82

-

-

85

1.23

1984

98

2.32

17

2.31

115

2.32

95

1.27

4

1.75

-

-

99

1.28

1985

108

2.83

21

3.10

129

2.87

102

1.43

12

5.53

-

-

114

1.55

1986

63

1.85

23

3.62

86

2.12

105

1.65

3

1.52

-

-

108

1.64

1987

125

3.78

39

6.23

164

4.17

144

2.27

3

2.40

-

-

147

2.27

1988

149

4.10

29

4.46

178

4.15

189

2.90

4

3.04

-

-

193

2.90

1989

178

4.70

33

4.73

211

4.70

155

2.38

3