| Value | Category | Cases | |
|---|---|---|---|
| 1 | once | 11 |
0.7%
|
| 2 | twice | 8 |
0.5%
|
| 3 | 3-5 times | 7 |
0.5%
|
| 4 | 6-10 times | 8 |
0.5%
|
| 5 | 11-20 times | 5 |
0.3%
|
| 6 | more than 20 times | 6 |
0.4%
|
| 7 | not in past year, but happened before | 39 |
2.6%
|
| 8 | never happened | 1422 |
94.4%
|
| Sysmiss | 991 |