| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, always | 3 |
1.1%
|
| 2 | Yes, when item is out of stock | 143 |
53%
|
| 3 | No | 124 |
45.9%
|
| 4 | Not applicable | 0 |
0%
|
| Sysmiss | 52 |