2000

2004

2012

Variables

Mean

Std Dev.

No. of Obs

Mean

Std Dev.

No. of Obs.

Mean

Std Dev.

No. of Obs

Distance from:

clinic

3.74

3.84

174

3.58

3.40

173

3.73

5.06

181

Road

13.47

35.66

174

16.30

69.69

173

12.86

38.71

181

Library

37.53

45.59

174

41.14

69.37

173

39.03

44.27

181

Bookshop

16.56

33.46

174

11.58

23.15

173

16.27

31.68

181

Secondary school

6.53

14.61

174

6.17

10.32

173

8.60

32.50

181