That's somewhere around the middle of the nationwide sweep of shall issue concealed carry regimes, now totalling 42 states and 2/3rds of the population. Such an astounding political development---there were 2-3 states when Florida opened the floodgates in 1987---wouldn't seem to correlate with lower ownership rates.
As for this so called research, would you be talking about the output of people like Dr. Mark Rosenberg, director of the National Center for Injury Prevention and Control at the CDC in 1994 when he said objective was to make people see firearms as “dirty, deadly—and banned.”
Any wonder the NRA and gun owners in general were able to get the Congress to ban such "research"? And aren't you a bit disturbed by the violations of the rule of law of Obama ignoring these laws?