| Value | Category | Cases | |
|---|---|---|---|
| 1 | once | 33 |
2.2%
|
| 2 | twice | 12 |
0.8%
|
| 3 | 3-5 times | 21 |
1.4%
|
| 4 | 6-10 times | 8 |
0.5%
|
| 5 | 11-20 times | 3 |
0.2%
|
| 6 | more than 20 times | 8 |
0.5%
|
| 7 | not in past year, but happened before | 54 |
3.6%
|
| 8 | never happened | 1365 |
90.8%
|
| Sysmiss | 993 |