| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 2 |
1.1%
|
| 2 | Yes, when item is out of stock | 27 |
14.6%
|
| 3 | No | 148 |
80%
|
| 4 | Not Applicable | 8 |
4.3%
|
| Sysmiss | 122 |