| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 1 |
0.5%
|
| 2 | Yes, when item is out of stock | 66 |
30.1%
|
| 3 | No | 139 |
63.5%
|
| 4 | Not applicable | 13 |
5.9%
|
| Sysmiss | 81 |