On the subject of the Great Depression, I just came across some graphs illustrating the change in GDP and the change in money supply. I believe that some external factors, such as government taxation and money supply can generate valid stats as a percentage of GDP. These aren’t stats, but are very interesting charts:
http://www.usstuckonstupid.com/sos_charts.php
The Fed caused the Great Depression, and prolonged it.
I’m not sure what we are arguing about, anymore. When you get a handle on it, post your stats here.