It was a much more substantial trend than that and involved entire geographic areas (cantons?).
Sorry, I should have included links for the above claim.
http://www.bbc.com/news/magazine-21379912
http://www.npr.org/2013/03/19/174758723/facing-switzerland-gun-culture
Hard to believe guns are usually stored in a common storage area when most of the voters rejected such a requirement.