I don't run an hour meter but I think the real criterion is number of trips, not number of hours per year. Some trips I don't even have to start the main engine, and some trips I run ten minutes and then anchor up for the whole day. Others I run for hours up and down the river looking for fish.

My goal is 60-80 trips per year and for the past five years or so I've been sticking with that thanks to a work schedule with Fridays and weekends off plus careful use of vacation.