| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2129 |
82.2%
|
| 2 | 1 or 2 times | 313 |
12.1%
|
| 3 | 3 to 9 times | 88 |
3.4%
|
| 4 | 10 or more times | 61 |
2.4%
|
| Sysmiss | 260 |