| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2559 |
76.6%
|
| 2 | 1 or 2 times | 499 |
14.9%
|
| 3 | 3 to 9 times | 194 |
5.8%
|
| 4 | 10 or more times | 88 |
2.6%
|
| Sysmiss | 180 |