The German Catholic population:
And then the Nazi vote.
Source: Erik Maria Ritter von Kuehnelt-Leddihn ""Liberty or Equality".
via
http://cathcon.blogspot.com/2007/07/catholics-fiercest-anti-nazis-in-pre.html
Reproduced in Scholder Die Kirchen und das Dritte Reich. Bd. 1 und 2: Vorgeschichte und Zeit der Illusionen, 1918 - 1934 (The Churches and the Third Reich, vol. 1: Case History and Time of Illusions). Berlin 1977