| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 2726 |
93.8%
|
| 2 | 1 or 2 times | 156 |
5.4%
|
| 3 | 3 to 9 times | 16 |
0.6%
|
| 4 | 10 or more times | 7 |
0.2%
|
| Sysmiss | 13 |