Mining width/m

10

20

25

30

35

40

45

Data collection number

1 - 18

19 - 21

22 - 26

27 - 31

32 - 36

37 - 40

41 - 48

Mining width/m

55

60

70

75

80

90

Data collection number

49 - 53

54 - 62

63 - 67

68 - 73

74 - 87

88 - 98