PKN`s ROCE reached 7.91 % in 2015. This is 148 % less than in the previous year.
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| Company | Unit | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| Grupa Lotos | % | ... | ... | ... | 8.35 | 4.85 | 4.06 | 5.53 | 0.233 | ||||||||
| PGNiG | % | ... | ... | ... | ... | 4.47 | 8.19 | 5.29 | 5.66 | 4.39 | |||||||
| PKN | % | 3.43 | 6.28 | 5.99 | 5.80 | 0.457 |
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