If memory serves me correctly, the average number you'd see used everywhere pre-2008 was more like 10%.
The problem with looking at extremely long periods of time (i.e., 50 years) is you see these massive events like depressions and the housing crisis. How many of those will happen in the next few decades... who knows?
Maybe we'd be better off to look at median percentages than averages.
The problem with looking at extremely long periods of time (i.e., 50 years) is you see these massive events like depressions and the housing crisis. How many of those will happen in the next few decades... who knows?
Maybe we'd be better off to look at median percentages than averages.