I dont know IvanK - i just found these single document some time ago. But it is clearly for MErlin III testing with 100 octan fuel - data is from 28.02.1940.
Document which you posted is of course for Merlin III with 87 octan fuel only - not for 100 Octan fuel.
Here is for Merlin XII for both 87 and 100 Octan fuel used:
