| Value | Category | Cases | |
|---|---|---|---|
| 1 | once | 14 |
0.9%
|
| 2 | twice | 13 |
0.9%
|
| 3 | 3-5 times | 16 |
1.1%
|
| 4 | 6-10 times | 10 |
0.7%
|
| 5 | 11-20 times | 5 |
0.3%
|
| 6 | more than 20 times | 11 |
0.7%
|
| 7 | not in past year, but happened before | 49 |
3.3%
|
| 8 | never happened | 1387 |
92.2%
|
| Sysmiss | 992 |