| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1311 |
78.4%
|
| 2 | 1 or 2 times | 248 |
14.8%
|
| 3 | 3 to 9 times | 81 |
4.8%
|
| 4 | 10 or more times | 33 |
2%
|
| Sysmiss | 48 |