CPRC President Dr. John Lott talks with The Steve Gruber Show. PEW Research has shown that firearm homicides have declined significantly since the 90’s. Dr. Lott explains that gun ownership is on the rise. Gun sales in 2014 doubled since 2006. The number of concealed carry permit holders has tripled from 4.6 million in 2007 to 13 million currently. Oct 27, 2015.