http://www.vgrdl.de or https://www.destatis.de/EN/Service/FAQ/NationalAccounts/Revision2014/Changes.html
Revision 2011
for further details in German please go to: http://www.vgrdl.de/arbeitskreis_VGr/infoRevision2011.asp The biggest change in the data of Revision 2011 ist that of the classification of economic activity (=Wirtschaftszweig =WZ). With each review of the classification former groups can't be compared to current groupings, therefore older data is not comparable to the new data.
The most current classification system is WZ08, and replaces WZ03, data according to WZ08 is currently only available from 2008, and data according to WZ03 ends in 2009.
Revision 2005
Major revisions of national accounting results are performed at intervals of about five to ten years. Such comprehensive revisions are required to - integrate new statistical calculation bases not yet used;
- apply new calculation methods;
- change over to a new price basis;
- introduce new concepts, definitions, classifications, etc. in the accounting system;
- modernise the way of presentation and introduce new terms where necessary.
For further Details please go to: http://www.destatis.de/themen/e/thm_volksw.htm
Data:
annual sum
Source:
Statistische Landesämter, Arbeitskreis Volkswirtschaftliche Gesamtrechnungen
National Accounts