| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 6 |
3.2%
|
| 2 | Yes, when item is out of stock | 14 |
7.4%
|
| 3 | No | 169 |
89.4%
|
| 4 | Not applicable | 0 |
0%
|
| Sysmiss | 122 |