Does anyone know what the specifications for GPM (gallons per minute) and PSI are for the 4th Gen 4Runner Power Steering Pump?

I am considering the installation of a hydraulic winch but want to know what my power steering pump is capable of first.

 

I found out the pump is rated at 1209 psi. Still dont know the GPM. If anyone has this info...

 

I recently mounted a hydraulic winch. Based on the speed I am getting compared to the rated speed at 3.5 GPM, I estimate that the 4th gen power steering pump puts out 2.3 GPM.