HP numbers using scanner

My cousin, fellow member "LEDbetter," set up a histogram to measure horsepower. I use this as basis for a guage to track it. My question is: do these numbers represent RWHP? It's definitely closer to that figure than it would be at the crank. Just intersted as to the accuracy.
Thanks

The horsepower one doesn't look like it represents horsepower, maybe torque, it gives the highest numbers at around 4500RPM which would be around peak torque, if it were horsepower the highest numbers would be closer to max RPM than they are.