| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2749 |
90.4%
|
| 2 | 1 or 2 times | 164 |
5.4%
|
| 3 | 3 to 9 times | 65 |
2.1%
|
| 4 | 10 or more times | 64 |
2.1%
|
| Sysmiss | 291 |