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| Company | Unit | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| ENEA | PLN mil | ... | ... | 661 | 653 | 683 | 750 | 762 | |||
| PGE | PLN mil | 2,639 | 2,655 | 2,711 | 2,932 | 2,982 | |||||
| Tauron Polska Energia | PLN mil | ... | 1,321 | 1,359 | 1,411 | 1,686 | 1,727 |
Helgi Library 
