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註釋With Version 6, we are releasing new data for 113 countries covering 2013 and 2014, and for 76 of these countries data is also available for 2015 - in addition to the full data for all 173 countries from 1900-2012. The dataset now includes about 350 unique and disaggregated democracy indicators, 39 mid-level indices, and 5 Varieties of Democracy indices, including a new and better aggregation of the Electoral Democracy index that closely mirrors Robert Dahl's concept of “Polyarchy”