Depends upon various factors such as age, genetics, diet, fitness level, stress, etc...
I asked a sports medicine doc friend and he said that, for a guy about 35 years old average daily test production is between 8-12 mg. So, on a weekly basis that averages out to approx. 70 mg.
Seems low to me, but perhaps the lack of an "ester" with natural test makes it somehow more usable. But then again, look at your "average guy", most of them look like they need a good shot of TEST!