Standard Deviations of the Retrospective Survey
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Standard deviations for the retrospective survey on party positions on immigration. This figure is not included in the research note. The position on immigration is measured on a scale from 0 to 20, standard deviations reach 5 on this scale. The standard deviations are generally large the further back the retrospective survey goes, but interestingly not for all parties. The parties are: FDP (blue), CVP (orange), SVP (dark green), SPS (red), and GPS (light green)-