| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 3 |
1%
|
| 1 | 1 to 3 | 22 |
7.7%
|
| 2 | 4 to 8 | 192 |
67.1%
|
| 3 | 9 to 12 | 47 |
16.4%
|
| 4 | More than 12 | 22 |
7.7%
|
| Sysmiss | 3965 |