| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1719 |
95.6%
|
| 1 | Once | 53 |
2.9%
|
| 2 | Few | 17 |
0.9%
|
| 3 | Many | 10 |
0.6%
|
| Sysmiss | 4189 |