Nature of report

Year of publication

Row total

N (%)

2001 & 2002

N (%)

2003 & 2004

N (%)

2005 & 2006

N (%)

2007 & 2008

N (%)

2009 & 2010

N (%)

2011 & 2012

N (%)

2013 & 2014

N (%)

Empirical

7

(70.0)

11

(84.6)

23

(88.5)

34

(94.4)

29

(85.3)

30

(85.7)

24

(75.0)

158

(84.9)

Conceptual

3

(30.0)

2

(15.4)

3

(11.5)

2

(5.6)

5

(14.7)

5

(14.3)

8

(25.0)

28

(15.1)

Column total

10

(100)

13

(100)

26

(100)

36

(100)

34

(100)

35

(100)

32

(100)

186

(100)