| Value | Category | Cases | |
|---|---|---|---|
| 1 | once | 20 |
1.3%
|
| 2 | twice | 21 |
1.4%
|
| 3 | 3-5 times | 14 |
0.9%
|
| 4 | 6-10 times | 7 |
0.5%
|
| 5 | 11-20 times | 4 |
0.3%
|
| 6 | more than 20 times | 7 |
0.5%
|
| 7 | not in past year, but happened before | 47 |
3.1%
|
| 8 | never happened | 1381 |
92%
|
| Sysmiss | 996 |