| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1351 |
98.5%
|
| 1 | Once | 11 |
0.8%
|
| 2 | Few | 6 |
0.4%
|
| 3 | Many | 3 |
0.2%
|
| Sysmiss | 5650 |