| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 5461 |
97.9%
|
| 1 | Yes, once | 76 |
1.4%
|
| 2 | Yes, more than once | 41 |
0.7%
|
| 9 | 79 | ||
| Sysmiss | 25422 |