The FAA’s mandatory drone registration does not seem to be impacting UAV sales, which have grown 224 percent from April 2015 to April 2016 for a total of nearly $200 million, according to The NPD Group. Robotics Trends reports the FAA’s database indicates there are now “461,433 registered hobbyist drone owners in 39,471 zip codes.” NPD notes that DJI is the clear U.S. market leader at 49 percent, followed by Parrot (19 percent), Protocol (6.3 percent), Yuneec (5.6 percent) and 3D Robotics (4 percent). Drones with 4K cameras represented more than one-third of sales for the 12 month period, and GPS-outfitted drones accounted for 64 percent of sales.