GDP per unit of energy use (PPP $ per kg of oil equivalent), countries - PPP $ per kg of oil equivalent, Top 3 vs. Bottom 3, 2015

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GDP per unit of energy use (PPP $ per kg of oil equivalent), countries - PPP $ per kg of oil equivalent, Top 3 vs. Bottom 3, 2015

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GDP per unit of energy use (PPP $ per kg of oil equivalent), countries - PPP $ per kg of oil equivalent, Top 3 vs. Bottom 3, 2015

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