| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1477 |
80.3%
|
| 2 | 1 or 2 times | 261 |
14.2%
|
| 3 | 3 to 9 times | 62 |
3.4%
|
| 4 | 10 or more times | 39 |
2.1%
|
| Sysmiss | 20 |