| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 12 |
4.7%
|
| 2 | Yes, when item is out of stock | 12 |
4.7%
|
| 3 | No | 211 |
81.8%
|
| 4 | Not applicable | 23 |
8.9%
|
| Sysmiss | 50 |