| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 8 |
3.5%
|
| 2 | Yes, when item is out of stock | 14 |
6.1%
|
| 3 | No | 168 |
73.4%
|
| 4 | Not Applicable | 39 |
17%
|
| Sysmiss | 78 |