You should put your setup on the thread, i'm sure people with similar setups will let you know. Its hard for you to get a ball park figure just from us telling you how much we get. Theres too many variables to put into play (nute, Co2 usage, lights for veg&flower, type of setup (soil, soilless, hydroponic, etc..)
I'm just starting but from my research (while trying to manage my expectations at the same time) I figure about 1-1.5oz per plant. 2oz per plant would be a little higher expectations but 1-1.5 wont be bad for a first grow with 7-8 plants.