PKN`s ROE reached 12.7 % in 2015. This is 152 % less than in the previous year.
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| Company | Unit | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| Grupa Lotos | % | ... | ... | ... | 14.3 | 9.46 | 8.49 | 11.0 | 0.432 | |||||||||
| PGNiG | % | ... | ... | ... | ... | 5.86 | 10.9 | 7.21 | 8.55 | 6.89 | ||||||||
| PKN | % | 6.20 | 10.3 | 9.26 | 8.51 | 0.630 |
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