| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 6 |
6%
|
| 2 | Yes, when item is out of stock | 6 |
6%
|
| 3 | No | 62 |
62%
|
| 4 | Not applicable | 26 |
26%
|
| Sysmiss | 190 |