| Value | Category |
|---|---|
| 1 | Purchase the same amount of the main material input from the existing main supplier |
| 2 | Purchase some of this material input from alternative suppliers, but continue most of purchases from the existing main supplier |
| 3 | Purchase most of this material input from alternative suppliers, but continue some purchases from the existing main supplier |
| 4 | Purchase all of this material input from alternative suppliers |
| Sysmiss |