There is no average number. Having said that what your medical provider is looking for is a number that is not more than 200 for his total cholesterol level.
HDL (good cholesterol) should be above 40, and even higher is better.
LDL (bad cholesterol) should be less than 110.
These are only general ranges, but talking with your doctor is important.
Doctors focus on total cholesterol, which should be 200 or less, and LDC (bad) cholesterol which shold be 100 or under. Higher levels are better for the HDL (good) cholesterol.