In 2020 number of licenced cars fell by 0.3% to 1.6 million while all vehicles increased by 0.3% to 2.0 million.
Yn 2020 gostyngodd nifer y ceir wedi'u trwyddedu 0.3% i 1.6 miliwn, a chynyddodd nifer yr holl gerbydau 0.3% i 2.0 miliwn.