According to the latest FBI National Instant Criminal Background Check System (NICS) data, the number of checks done this Black Friday has dropped by 10 percent. A significant drop when compared to last year which saw a single-day record. Last year NICS data revealed that there were 203,086 background check requests done on Black Friday. That number has dropped to 182,093 requests this year.

This year’s numbers make it the lowest since 2014. The bureau reported 185,713 requests in 2016 and 185,345 checks in 2015. The numbers reported by the FBI are not equivalent to actual gun sales. In most cases, the number could be significantly higher given that a single customer who successfully passes a background check can purchase more than one firearm.

All federally licensed firearm stores are required to run background checks on gun purchasers. The special shopping holiday is consistently the biggest day for gun sales in the United States. Numerous stores offer large discounts on all of their firearms and ammunition during this day, which explains the sudden spike. The FBI also revealed that days following high-profile mass shootings usually see a large spike in sales as well. The biggest number of background check requests this year included the days following the Las Vegas shooting in October and after the Sutherland Springs shooting in November.

While gun sales increase after these tragic shootings, nationwide movements to end gun violence have also resulted in dips throughout the year. One of the biggest movements this year was by the survivors of the Parkland shooting. The survivors held a March for Our Lives event that saw hundreds marching in front of Washington. Some of the most recent attacks include a shooting in a Texas high school and a shooting in a bar in Thousand Oaks.