Underground Mines

Surface Mines

Underground

Surf at UG

Total

Strip

Auger

Culm Bank

Dredge

Total

Year

All

Injs

IR

All

Injs

IR

All

Injs

IR

All

Injs

IR

All

Injs

IR

All

Injs

IR

All

Injs

IR

All

Injs

IR

1978

13,123

13.58

1,175

10.01

14,298

13.20

3,721

5.86

39

10.66

11

13.37

2

31.22

3,773

5.90

1979

16,548

14.40

1,429

10.81

17,977

14.03

3,471

5.19

23

7.68

6

6.57

3

12.48

3,503

5.20

1980

16,141

14.52

1,384

10.82

17,525

14.14

3,140

4.73

15

6.88

4

4.03

4

9.62

3,163

4.74

1981

13,053

13.04

1,103

9.52

14,156

12.68

2,951

4.61

13

6.55

2

2.17

-

-

2,966

4.61

1982

12,321

12.21

996

8.72

13,317

11.85

2,755

4.46

15

6.42

8

5.24

2

3.28

2,780

4.46

1983¹

8,008

10.40

616

7.23

8,624

10.09

2,135

3.96

11

5.82

5

6.31

2

3.36

2,153

3.97

1984

8,632

10.37

674

7.66

9,306

10.11

2,236

3.81

15

7.88

3

2.77

-

-

2,254

3.82

1985

7,576

9.44

606

7.14

8,182

9.22

2,072

3.84

8

3.32

2

3.09

3

6.09

2,085

3.84

1986

7,954

10.64

586

7.18

8,540

10.30

2,303

4.59

10

5.85

2

2.15

2

4.50

2,317

4.58

1987

11,281

16.29

829

11.69

12,110

15.86

2,616

5.46

20

5.92

3

2.36

3

5.43

2,642

5.45

1988

11,373

17.18

890

13.00

12,263

16.79

2,513

5.57

24

5.95

8

5.41

1

1.93

2,546

5.56

1989

10,623

16.48

761

11.45

11,384

16.01

2,619

5.89

35

10.08

11

7.29

1

1.37

2,666

5.92

1990

10,527

15.73

836

12.10

11,363

15.39

2,376

5.27

39

12.42

10

7.24

3

3.86

2,428

5.33

1991

9,817

16.08

767

12.23

10,584

15.72

2,028

4.95

40

12.41

15

11.59

5

8.91

2,088

5.03

1992

8,644

15.29

644

11.35

9,288

14.93

1,824

4.68

28

8.43

13

11.03

1

2.42

1,866

4.73

1993

7,121

15.05

486

10.15

7,607

14.60

1,641

4.61

25

8.30

7

6.80

1

4.01

1,674

4.64

1994

7,414

14.88

524

10.93

7,938

14.53

1,622

4.48

18

4.92

16

13.13

2

5.93

1,658

4.52

1995

6,445

13.74

477

11.19

6,922

13.53

1,263

3.84

28

7.52

11

11.13

-

-

1,302

3.89

1996

5,457

12.08

411

10.33

5,868

11.94

1,032

3.28

24

4.94

6

6.85

-

-

1,062

3.31

1997

5,171

11.74

355

9.23

5,526

11.54

1,091

3.50

25

4.97

6

6.14

1

1.74

1,123

3.53

1998

5,194

12.29

321

8.53

5,515

11.99

1,019

3.35

27

5.33

5

5.19

3

4.12

1,054

3.39

1999

4,317

11.23

253

7.49

4,570

10.93

858

3.01

26

5.38

3

3.89

2

3.28

889

3.05

2000

4,010

11.40

249

8.00

4,259

11.13

868

3.28

22

5.58

4

3.75

8

13.15

902

3.33

2001

3,827

10.29

217

6.88

4,044

10.03

902

3.04

14

3.26

4

2.92

2

2.84

922

3.05

2002

3,569

10.16

211

7.07

3,780

9.92

927

3.11

22

5.03

8

7.37

-

-

957

3.15

2003

3,104

9.05

204

7.36

3,308

8.92

779

2.77

23

6.38

9

7.43

-

-

811

2.83

2004

3,137

8.55

178

6.59

3,315

8.42

732

2.44

15

3.31

7

3.73

-

-

754

2.46

2005

3,155

7.82

180

6.39

3,335

7.72

735

2.27

33

6.02

5

2.13

1

2.88

774

2.33

2006

3,184

7.49

163

5.53

3,347

7.36

729

2.17

27

4.01

4

1.64

-

-

760

2.20

2007

2,986

7.08

214

7.07

3,200

7.08

669

2.04

32

5.06

3

1.15

1

3.69

705

2.09

Year

Total Mining

Indp Shops/Yrds

Prep Plants

Total w/o Office

Office

Grand Total

All Injs

IR

All Injs

IR

All Injs

 IR

All Injs

IR

All Injs

IR

All Injs

IR

1978

18,071

10.49

222

7.29

1,435

8.98

19,728

10.31

40

.53

19,768

9.94

1979

21,480

10.99

209

5.55

1,530

7.82

23,219

10.61

43

.49

23,262

10.23

1980

20,688

10.85

177

5.06

1,392

6.91

22,257

10.39

47

.50

22,304

9.97

1981

17,122

9.73

124

4.30

1,114

5.63

18,360

9.24

45

.47

18,405

8.84

1982

16,097

9.22

95

3.49

1,010

5.22

17,202

8.74

26

.26

17,228

8.33

1983¹

10,777

7.71

87

3.84

812

5.32

11,676

7.42

26

.29

11,702

7.04

1984

11,560

7.65

63

3.00

834

4.91

12,457

7.32

21

.24

12,478

6.98

1985

10,267

7.18

86

4.64

741

4.57

11,094

6.89

20

.24

11,114

6.56

1986

10,857

8.13

86

5.44

794

5.13

11,737

7.80

24

.31

11,761

7.43

1987

14,752

11.82

95

7.46

1,129

7.64

15,976

11.34

41

.56

16,017

10.81

1988

14,809

12.46

94

8.98

1,128

7.64

16,301

11.91

21

.30

16,052

11.33

1989

14,050

12.10

80

8.86

1,155

7.85

15,285

11.60

41

.59

15,326

11.05

1990

13,791

11.55

115

10.98

1,110

7.49

15,016

11.10

28

.42

15,044

10.60

1991

12,672

11.65

99

9.61

1,005

7.29

13,776

11.15

40

.64

13,816

10.64

1992

11,154

10.97

73

7.83

856

6.58

12,083

10.45

31

.52

12,114

9.97

1993

9,281

10.53

89

11.27

768

6.75

10,138

10.11

26

.47

10,164

9.60

1994

9,596

10.51

65

8.31

760

6.41

10.421

10.02

17

.31

10,438

9.54

1995

8,224

9.72

41

6.45

599

5.50

8,864

9.22

14

.28

8,878

8.77

1996

6,930

8.53

32

6.30

489

4.63

7,451

8.07

7

.15

7,458

7.70

1997

6,649

8.34

27

5.90

440

4.35

7,116

7.88

12

.27

7,128

7.53

1998

6,569

8.52

32

6.83

432

4.52

7,033

8.07

15

.38

7,048

7.74

1999

5,459

7.69

23

4.93

375

4.30

5,857

7.31

8

.23

5,865

7.01

2000

5,161

7.90

29

5.28

368

4.47

5,558

7.50

10

.32

5,568

7.21

2001

4,966

7.03

36

6.71

342

3.95

5,344

6.70

8

.25

5,352

6.44

2002

4,737

6.92

20

4.25

380

4.37

5,137

6.62

6

.19

5,143

6.36

2003

4,119

6.27

23

4.99

351

4.23

4,493

6.03

8

.27

4,501

5.81

2004

4,069

5.81

15

3.17

305

3.53

4,389

5.55

9

.29

4,398

5.35

2005

4,109

5.38

11

2.24

280

3.00

4,400

5.10

8

.24

4,408

4.92

2006

4,107

5.13

19

3.88

277

2.92

4,403

4.89

6

.17

4,409

4.72

2007

3,905

4.95

18

3.64

241

2.60

4,164

4.70

5

.14

4,169

4.52