| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2629 |
82.5%
|
| 2 | 1 or 2 times | 421 |
13.2%
|
| 3 | 3 to 9 times | 85 |
2.7%
|
| 4 | 10 or more times | 51 |
1.6%
|
| Sysmiss | 29 |