Well I'm on my 4th career so I'm above average, I think the mean is 2 or 3. The current career is by far the best, mostly because it's a small company and my business partner and I are on exactly the same page with respect to quality of life versus profit-seeking. We develop audio production software, but with a business goal of enjoying the process and keeping the scope of the business small and manageable, rather than always trying to increase sales and expand or get bought out. We make a living and we can take the day off whenever. We won't ever get rich but that is a tradeoff I am happy to make.