| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 268 |
4.8%
|
| 2 | 1 | 698 |
12.4%
|
| 3 | 2 | 987 |
17.6%
|
| 4 | 3 or more | 3669 |
65.3%
|
| Sysmiss | 86 |