|From: NSSF/Full size chart here
The May 2012 NSSF-adjusted National Instant Criminal Background Check System (NICS) figure of 840,412 is an increase of 20.6 percent over the NSSF-adjusted NICS figure of 696,947 in May 2011. For comparison, the unadjusted May 2012 NICS figure of 1,305,392 reflects a 7.0 percentincrease from the unadjusted NICS figure of 1,219,872 in May 2011.
This marks the 24th straight month that NSSF-adjusted NICS figures have increased when compared to the same period the previous year.
The adjusted NICS data were derived by subtracting out NICS purpose code permit checks used by several states such as Kentucky, Iowa and Michigan for CCW permit application checks as well as checks on active CCW permit databases.
Though not a direct correlation to firearms sales, the NSSF-adjusted NICS data provide a more accurate picture of current market conditions. In addition to other purposes, NICS is used to check transactions of firearms sales and transfers on new and used handguns and long guns.