| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1271 |
71.8%
|
| 2 | 1 or 2 times | 343 |
19.4%
|
| 3 | 3 to 9 times | 91 |
5.1%
|
| 4 | 10 or more times | 66 |
3.7%
|
| Sysmiss | 6 |