| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 61 |
3%
|
| 2 | 1 | 202 |
10%
|
| 3 | 2 | 347 |
17.1%
|
| 4 | 3 or more | 1418 |
69.9%
|
| Sysmiss | 29 |