The SIPRI Arms Transfers Database catalogs weapon sales from 1950 to the most recent full calendar year. The downloadable sheet on this entry covers Chinese drone sales. For the complete dataset, see SIPRI link above.
Drone Transfers Data
Between 2008 and 2018, China exported a total of 181 drones to 13 countries around the world. View
From 2008 to 2018, China delivered 163 strike-capable UAVs to foreign countries. View
Through 2018, the main purchasers of Chinese drones have been the UAE (22.1 percent of sales), Saudi Arabia (19.3 percent), Egypt (15.5 percent), and Pakistan (13.8 percent). View