The following graphic shows the rating of countries based on the latest Democracy Index by The Economist Intelligence Unit. Most of Africa are authoritarian regimes. Same for most of the Middle East, Russia and China. Some of the major countries are classified as flawed democracies. These include Brazil, India, Italy, France and the US.
North Korea ranks the last in democracy for obvious reasons. And the most democratic country is Norway followed by Iceland and Sweden.
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Source: RFE/RL Infographic