| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1690 |
95.7%
|
| 1 | Once | 42 |
2.4%
|
| 2 | Few | 22 |
1.2%
|
| 3 | Many | 12 |
0.7%
|
| Sysmiss | 5264 |