| Value | Category | Cases | |
|---|---|---|---|
| 1 | 167 |
70.5%
|
|
| 2 | 58 |
24.5%
|
|
| 3 | 6 |
2.5%
|
|
| 4 | 4 months or more | 6 |
2.5%
|
| Sysmiss | 1372 |