All-Electric Vehicles Make Up 53% of Plug-In Vehicle Sales to Date
October 15, 2018
Cumulative sales of plug-in vehicles through July 2018 show that more than half (53%) are all-electric vehicles (EV). Plug-in hybrid vehicles (PHEV), which use electricity from the grid as well as gasoline, make up the other 47%. Together, sales of EV and PHEV add to more than 900,000 cumulative vehicles from the first sales in December 2010 to July 2018.

Source
Argonne National Laboratory, Light Duty Electric Drive Vehicles Monthly Sales Updates website, accessed September 6, 2018.