| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 154 |
84.6%
|
| 1 | Once | 19 |
10.4%
|
| 2 | Few | 6 |
3.3%
|
| 3 | Many | 3 |
1.6%
|
| Sysmiss | 7678 |