| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, at least one card seen | 436 |
9.2%
|
| 2 | Yes, no cards seen | 965 |
20.5%
|
| 3 | No cards | 3305 |
70.1%
|
| 9 | Missing | 8 |
0.2%
|
| Sysmiss | 113 |