| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1523 |
95.5%
|
| 1 | Once | 42 |
2.6%
|
| 2 | Few | 24 |
1.5%
|
| 3 | Many | 5 |
0.3%
|
| Sysmiss | 5427 |