| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 1 |
0.4%
|
| 2 | Yes, when item is out of stock | 19 |
7.6%
|
| 3 | No | 202 |
81.1%
|
| 4 | Not applicable | 27 |
10.8%
|
| Sysmiss | 62 |