No I don't know exactly. When I was young my grandparents had a winter home about 2 hours away from Disney. So I know we took several day trips but I can't remember how many. All I know is it started the bug.
We went when I was in high school and stayed in DTD for a few days after a cruise.
As an adult I have been offsite once, and with my husband and kids onsite 4 times. This May will mark our 5th onsite trip.