PGNiG`s Effective Tax Rate reached 29.1 % in 2015. This is 31.4 % more 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 | % | ... | ... | ... | 17.8 | 5.62 | -17.8 | -156 | 167 | |||||||||
| PGNiG | % | ... | ... | ... | 16.6 | 16.3 | 7.53 | 12.1 | 29.1 | |||||||||
| PKN | % | 9.75 | 20.0 | 27.8 | 17.3 | 42.7 |
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