Financial reporting
Conclusions of international audit company PricewaterhouseCoopers
Audit reports
| 2010 | 2011 | 2012 | Annual report
| 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | Quarterly reports
| 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | Current performance indicators