| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 4 |
1.4%
|
| 2 | Yes, when item is out of stock | 135 |
48%
|
| 3 | No | 142 |
50.5%
|
| 4 | Not applicable | 0 |
0%
|
| Sysmiss | 9 |