| Value | Category | Cases | |
|---|---|---|---|
| 0 | has not experienced | 3551 |
99.5%
|
| 1 | 16 |
0.4%
|
|
| 2 | 2 |
0.1%
|
|
| 77 | refuse | 0 |
0%
|
| 88 | don't know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 1401 |