| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 824 |
76.4%
|
| 2 | 1 or 2 times | 169 |
15.7%
|
| 3 | 3 to 9 times | 49 |
4.5%
|
| 4 | 10 or more times | 36 |
3.3%
|
| Sysmiss | 56 |