| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 182 |
7.2%
|
| 2 | 1 | 246 |
9.7%
|
| 3 | 2 | 313 |
12.3%
|
| 4 | 3 or more | 1797 |
70.8%
|
| Sysmiss | 131 |