| Value | Category | Cases | |
|---|---|---|---|
| 1 | A week or less | 32 |
34%
|
| 2 | More than a week but less than a month | 9 |
9.6%
|
| 3 | One to six months | 13 |
13.8%
|
| 4 | Seven to eleven months | 6 |
6.4%
|
| 5 | One to five years | 23 |
24.5%
|
| 6 | More than 5 years | 11 |
11.7%
|
| Sysmiss | 13501 |