http://www.guns.com/gallup-poll-gun-ownership-soars-in-us.html

I'd put my money on the fact that well over half of gun owners wouldn't disclose that they had a gun on their property to anyone, so at least double that number for people with exposed to guns. Even more so the comments at the bottom are pretty interesting so far

 

"Circa 93, people were reluctant to disclose the fact that they owned a gun due to the threat of confiscatory gun legislation and the impending passage of the Violent Crime Control and Law Enforcement Act, which contained the federal assault weapons ban.

 

This theory would help explain the precipitous drop in self-reported gun ownership (guns on property) from 93-96."