These figures published online Tuesday by the FBI show the number of federal background checks for firearms sales in each state sorted alphabetically between October and January, with the total percentage change in the number of checks conducted between December and January. The nationwide totals for each month also include figures for background checks in Guam, the Northern Mariana Islands, Puerto Rico and the Virgin Islands, which are not shown individually in this list. Kentucky's numbers are disproportionately higher because, the FBI explained, Kentucky runs a new background check on existing conceal-and-carry permits every month. Other states do this every few months, twice a year, yearly or every two or three years.
The raw FBI figures can be downloaded here: http://1.usa.gov/12qmop9