| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2019 |
86.4%
|
| 2 | 1 time | 175 |
7.5%
|
| 3 | 2 or 3 times | 78 |
3.3%
|
| 4 | 4 or 5 times | 28 |
1.2%
|
| 5 | 6 or more times | 36 |
1.5%
|
| Sysmiss | 23 |