ENEA`s Gross Margin reached 48.5 % in 2015. This is 13.8 % more than in the previous year.
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| Company | Unit | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| ENEA | % | ... | ... | 67.1 | 65.7 | 57.6 | 59.6 | 44.0 | |||
| PGE | % | 66.6 | 63.2 | 51.4 | 54.1 | 46.8 | |||||
| Tauron Polska Energia | % | ... | 32.9 | 32.0 | 24.7 | 25.9 | 39.4 |
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