PORR`s Operating Cost Growth reached 12.5 % in 2014. This is 410 % less than in the previous year.
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| Company | Unit | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| PORR Group | % | ... | ... | ... | ... | ... | ... | ... | ... | -5.92 | -2.05 | 12.1 | 4.39 | -4.04 | ... | |
| Strabag SE | % | ... | ... | ... | ... | ... | 10.8 | 0.225 | 9.01 | -0.470 | -6.05 | ... | ||||
| Wienerberger | % | ... | ... | -12.7 | -16.3 | 15.8 | 20.6 | 22.1 |
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