Oil pump flow rate?

[swingarm]

I have searched to no avail. Anyone have a rough ballpark flow rate for the M8 oil pumps at a given oil temp and engine RPM?  Based on PSI and port ID one could rough guess a flow rate based on fluid weight and viscosity specifics of the oil, but I assume someone already has or just bench tested it?  Curious what a typical discharge flow rate of the pump would be back into the reservoir at typical running RPM and oil temperatures?