| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1113 |
98.6%
|
| 1 | Once | 12 |
1.1%
|
| 2 | Few | 1 |
0.1%
|
| 3 | Many | 3 |
0.3%
|
| Sysmiss | 2470 |