| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 1 |
0.4%
|
| 2 | Yes, when item is out of stock | 7 |
3.1%
|
| 3 | No | 156 |
68.1%
|
| 4 | Not Applicable | 65 |
28.4%
|
| Sysmiss | 78 |