[Unrealistic global incident values]

I have recently run a simulation using Canadian (CEWC) data and the Loss diagram shows my Global incident in collector plane to increase 24.7 percent. This seems like an unrealistic value but I am unsure. Any insight from more experienced users would be greatly appreciated. Cheers.

[Unrealistic increase? - global incident in collector plane]

After running a simulation and reviewing the Loss Diagram, I have noticed that my Global incident in coll. plane adds over 26%. I am wondering whether this is a realistic value or whether it may be a result of faulty data. I am using a Canadian CWEC hourly dataset. Cheers.