N

Min

Max

Range

Mean

Var

Std

CV(%)

251-10

50

77

109

32

91.33333

34.09195

5.838832

6.392204

251-12

50

87

93

6

89.5

3.727273

1.930615

2.156425

251-14

50

75

104

29

91.38095

75.9489

8.714866

9.531527

251-16

50

69

97

28

86.41304

44.29227

6.655244

7.701666

251-18

50

63

102

39

83.92593

91.01328

9.540088

11.36727