How much do you pump?

It seems like since I went back to work and started pumping, my milk supply has gone up! I suddenly have to wake up at night to pump off a few oz between nursing sessions or before I leave for work. So I'm curious l, how much milk do you ladies typically get a day off pumping at work? I get about 10 oz in two sessions and right now I'm going home at lunch to nurse. Baby is 8 weeks and seems to be constantly growth-spurting and cluster feeding but she doesn't eat as much as I can pump.