| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 24 |
17.6%
|
| 2 | Yes, when item is out of stock | 13 |
9.6%
|
| 3 | No | 79 |
58.1%
|
| 4 | Not applicable | 20 |
14.7%
|
| Sysmiss | 154 |