La Liga teams have dominated in the European Competitions this last decade as they won 66% of the titles.
According to Opta, 20 of 30 European titles' Champions this last decade have been won by La Liga's teams (Champions League, Europa League & UEFA SuperCup).
Real Madrid 7 = UCL 4 and Super Cup 3
Atletici Madrid 6 = UEL 3 and Super Cup 3
Barcelona 4 = UCL 2 and Super Cup 2
Sevilla 3 = UEL 3