This statistic displays the leading countries based on their energy productivity index in 2015. During this year, Switzerland was ranked * based on their index score of *** billions of euros of GDP per exajoule of energy consumed.
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Ecofys. (February 17, 2015). Leading countries based on energy productivity index worldwide in 2015 (in billions of euros of GDP per exajoule consumed) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 29, 2026, from /statistics/482656/worldwide-index-for-energy-productivity-key-countries/
Ecofys. "Leading countries based on energy productivity index worldwide in 2015 (in billions of euros of GDP per exajoule consumed)." Chart. February 17, 2015. ÌÇÐÄÆƽâ°æ. Accessed July 29, 2026. /statistics/482656/worldwide-index-for-energy-productivity-key-countries/
Ecofys. (2015). Leading countries based on energy productivity index worldwide in 2015 (in billions of euros of GDP per exajoule consumed). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 29, 2026. /statistics/482656/worldwide-index-for-energy-productivity-key-countries/
Ecofys. "Leading Countries Based on Energy Productivity Index Worldwide in 2015 (in Billions of Euros of Gdp per Exajoule Consumed)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 17 Feb 2015, /statistics/482656/worldwide-index-for-energy-productivity-key-countries/
Ecofys, Leading countries based on energy productivity index worldwide in 2015 (in billions of euros of GDP per exajoule consumed) ÌÇÐÄÆƽâ°æ, /statistics/482656/worldwide-index-for-energy-productivity-key-countries/ (last visited July 29, 2026)
Leading countries based on energy productivity index worldwide in 2015 (in billions of euros of GDP per exajoule consumed) [Graph], Ecofys, February 17, 2015. [Online]. Available: /statistics/482656/worldwide-index-for-energy-productivity-key-countries/
