Range

#

Per cent

86�104

11

37.9

82�85

2

6.9

78�81

2

6.9

75�77

0

0.0

72�74

0

0.0

68�71

1

3.4

65�67

4

13.8

60�64

2

6.9

55�59

2

6.9

50�54

0

0.0

 0�49

5

17.2

Statistic

Value

Number of papers

29

Maximum

104

Minimum

15

Mean

73.2

Standard deviation

23.9

Median

79

3rd quartile

95

1st quartile

61