Open Data Barometer

https://opendatabarometer.org/?_year=2017&indicator=ODB

The Open Data Barometer is a measurement of how open data is used and published globally by governments for transparency, innovation, and social impact. The Leaders Edition examines the 30 states that have ratified the Open Data Charter and the G20 Anti-Corruption Open Data Principles as G20 members. For further details, see the revised methodology. The most recent complete edition is the Open Data Barometer – 4th Edition.