From the Federal Aviation Administration:
The Federal Aviation Administration (FAA) [recently] released an updated list of pilot, air traffic controller and citizen reports of possible encounters with unmanned aircraft systems (UAS). The latest report covers August 22, 2015 through January 31, 2016.
Two MS MS Excel Spreadsheets are Now Available:
See Also: Article: Over 1,000 Drone Sightings Were Reported Last Year (via MarketWatch)