| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 129 |
7.4%
|
| 2 | 1 | 233 |
13.3%
|
| 3 | 2 | 315 |
17.9%
|
| 4 | 3 or more | 1078 |
61.4%
|
| Sysmiss | 17 |