Here is information on a  helpful recently-released study from the SURF Foundation in the Netherlands that looks at the state of play for research data across Europe, including some comparative national data. See

http://www.surf.nl/en/actueel/Pages/EuropeanLandscapeStudyofResearchDataManagement.aspx

for a summary of the project, and

http://www.sim4rdm.eu/sites/default/files/uploads/documents/SIM4RDM%20landscape%20report%20vs1%204_14.08.13.pdf

for the report proper.

Clifford Lynch
Director, CNI