*The high standard deviations are mainly caused by high scores of 1:VVD, 2: RPF, GPV and SGP (and also CDA), 3: CDA (mainly Catholic municipalities).
As a first step the difference between local and national results (in %) was calculated for every party that won a seat in the Second Chamber, for every municipality or province. Consequently the standard deviation of these resulting "group of differences" has been calculated for every municipality, and rounded on 2 decimals. The lower the standard deviation, the lower the deviation from the national result, 0 is an exact match.