ENEA`s ROE reached -3.60 % in 2015. This is 147 % less than in the previous year.
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| Company | Unit | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| ENEA | % | ... | ... | 5.58 | 6.64 | 7.81 | 6.70 | 6.45 | |||
| PGE | % | 9.77 | 7.83 | 12.4 | 8.81 | 9.31 | |||||
| Tauron Polska Energia | % | ... | 5.62 | 5.83 | 7.96 | 9.00 | 7.58 |
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