[18 SEPT. 2019: This is a beta-version of the site, and might experience occasional problems. All available data-sets, however, are final versions, and ready-to-use]
All data-sets in the Electronic Repository for Russian Historical Statistics are accompanied by extensive documentation on the origin and biases of the data, possible alternatives, as well as the compilation procedures followed in the production of the eventual data-set. The documentation files are split up by benchmark year and topic and the relevant documentation files are automatically included when data are downloaded from the file catalogue.
A full set of documentation can be downloaded here: