Agor y brif ddewislen

Newidiadau

|84.4
|-
! scope="row" | CYFANSWM
!1,617,989
!
!2,001,926
!
!44.7%
! style="background:green;color: white"|
! style="background: crimson; color: white"|55.3%
!3,619,915
!
! 84.6%
|}