| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1916 |
90.7%
|
| 2 | 1 time | 112 |
5.3%
|
| 3 | 2 or 3 times | 51 |
2.4%
|
| 4 | 4 or 5 times | 20 |
0.9%
|
| 5 | 6 or more times | 14 |
0.7%
|
| Sysmiss | 8 |