The European Commission published the eighth edition of the Open Data Maturity Report, which has been compiled since 2015.. The 2022 edition aims to help participating countries better understand their level of open data maturity, to capture their progress over time.
More about the report on data.europa.eu: https://data.europa.eu/en/publications/datastories/assessing-open-data-developments-across-europe-discover-open-data-maturity