My rough count shows 128 million firearm purchaser background checks since Obama came into office. That's more than one background check for every three persons residing in the U.S.
Yes, in some cases purchases were denied, or not completed for some other reason.
Some states may use the NCIS system to verify eligibility in processing concealed carry licensing.
On the other hand, some background checks may represent multiple purchases.
And in some states, additional background checks aren't done if the purchaser has been pre-screened as a concealed carry license holder.
If Obama wanted to limit guns in circulation, maybe he should've just kept his mouth shut.