ENEA`s Net Margin reached -4.42 % in 2015. This is 148 % less than in the previous year.
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| Company | Unit | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| ENEA | % | ... | ... | 7.18 | 8.16 | 8.19 | 7.11 | 7.90 | |||
| PGE | % | 15.6 | 14.6 | 17.4 | 11.9 | 13.1 | |||||
| Tauron Polska Energia | % | ... | 5.65 | 5.57 | 6.00 | 5.96 | 6.84 |
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