| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2630 |
90.7%
|
| 2 | 1 or 2 times | 191 |
6.6%
|
| 3 | 3 to 9 times | 48 |
1.7%
|
| 4 | 10 or more times | 32 |
1.1%
|
| Sysmiss | 173 |