| Supply modes Supply sites | Frequency of citation (%) | ||
| Free cut in the forests | Exchange | Purchase | |
| Forest | 78 | 19 | 12 |
| Agroforestry systems | 16 | 35 | 10 |
| No Answer (N/A) | 0 | 10 | 14 |
| Total | 94 | 64 | 36 |