I'd be more interested in seeing data on how much government has grown ever since owning a firearm became regulated by the government.
As for the affectiveness of "stand your ground". Illinois bans any form of carrying and is the only state to do so. To transport your gun it must be locked up in a gun case and not easily accessed. Chicago bans pistols all together and more people are killed in Chicago than US troops in Afganistan.
http://www.huffingtonpost.com/2012/0...n_1602692.html
I can already see soldiers dreading the day they are stationed in Chicago.