Concept
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Created by Boundless
Winning an Election: Majority, Plurality, and Proportional Representation

German federal election, 2005
Seats won by each party in the 2005 German federal election, an example of a proportional voting system.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"German federal election, 2005 - Final."
http://en.wikipedia.org/wiki/File:German_federal_election,_2005_-_Final.png
Wikipedia
CC BY-SA.