| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1745 |
98.6%
|
| 1 | Once | 16 |
0.9%
|
| 2 | Few | 4 |
0.2%
|
| 3 | Many | 5 |
0.3%
|
| Sysmiss | 5260 |