| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 992 |
65.5%
|
| 2 | 1 or 2 times | 310 |
20.5%
|
| 3 | 3 to 9 times | 156 |
10.3%
|
| 4 | 10 or more times | 56 |
3.7%
|
| Sysmiss | 41 |