| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 752 |
81.7%
|
| 2 | 1 or 2 times | 109 |
11.8%
|
| 3 | 3 to 9 times | 31 |
3.4%
|
| 4 | 10 or more times | 29 |
3.1%
|
| Sysmiss | 36 |