| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 28 |
1.8%
|
| 2 | 1 | 118 |
7.4%
|
| 3 | 2 | 155 |
9.8%
|
| 4 | 3 or more | 1286 |
81%
|
| Sysmiss | 8 |