Range

#

Per cent

86–109

6

21.4

82–85

0

0.0

78–81

3

10.7

75–77

0

0.0

72–74

3

10.7

68–71

2

7.1

65–67

2

7.1

60–64

3

10.7

55–59

1

3.6

50–54

2

7.1

 0–49

6

21.4

Statistic

Value

Number of papers

28

Maximum

109

Minimum

21

Mean

67.3

Standard deviation

23.6

Median

68.5

3rd quartile

79

1st quartile

53