ON the Bombard/Evinrude site in the us , they have porformance figures on various boats ... they usualy dont include Ribs... but offshore boats should boats will give you a good idea.......
The engines seem to consume the same fuel, for a given rpm , it just the speed thta is different , on different hulls
Failing that . Yamahas Amercian site , has the same, and the 200 hdpi , would be close enough........ Infact I think that they are all the same a WOT , whether DI or 'old 2 stroke'
NOT THE SHARPEST KNIFE IN THE DRAWER