| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 237 |
15%
|
| 2 | 1 | 392 |
24.8%
|
| 3 | 2 | 276 |
17.5%
|
| 4 | 3 or more | 676 |
42.8%
|
| Sysmiss | 48 |