The estimates that you have and that were in the audit report are generally in line with what we would see for the two billion trees program. If you are planting smaller, younger seedlings in a mass area where you don't have to do a lot of preparation to the territory before you plant, then it's less expensive. If you are planting an older tree, where it costs you more to buy it because somebody has had to grow it, in a place where you have to do a lot of preparation, then it's going to cost more. That's why you see urban trees being more expensive.
You also might see some work that's more expensive because it's part of habitat restoration work. That means there's a lot more work around the planting of the tree to prepare the land, prepare the soil and prepare the area.
I hope that covers it.