ENEA`s Staff Cost (As % Of Total Cost) reached 9.64 % in 2015. This is 11.9 % less than in the previous year.
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| Company | Unit | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| ENEA | % | ... | ... | 12.4 | 13.1 | 11.3 | 11.0 | 12.6 | |||
| PGE | % | 24.2 | 24.6 | 18.7 | 18.6 | 17.1 | |||||
| Tauron Polska Energia | % | ... | 18.9 | 18.6 | 13.3 | 13.0 | 15.5 |
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