Our 2012 sustainability report is based on the Global Reporting Initiative (GRI) framework. Its guidelines on sustainable reporting enable improved comparability between reports and increase their transparency and relevance. The GRI context index lists which standard data we report and were the relevant information can be found in our report. It also shows which criteria we have already fully met and which are partly met. The Global Reporting Initiative differentiates in its guidelines on sustainable report drafting between three fulfillment grades, which go from C to A. The assessment shows how much information was provided in the report according to current GRI guidelines. We ourselves estimate that the fulfillment grade for our report is B.