The statistical yearbooks (Statistische Jahrbücher) of the German Reich, the Federal Republic of Germany and the German Democratic Republic contain data on economy, population, social aspects and health from 1880 to 1990.
The digitalized copies of the German statistical yearbooks can be used without asking for permission.
Further information can be found here: Public Domain Mark 1.0.
To access the resource, please go to:
https://digi.bib.uni-mannheim.de/statistische-jahrbuecher/