Duration (months)

Frequency

Percentage

<3

2

4.2

3 - 6

4

8.4

6 - 9

5

10.4

9 - 12

8

16.6

12 - 15

15

31.2

15 - 18

8

16.6

18 - 24

4

8.4

>24

2

4.2

Total

48

100