How much do the countries of Europe invest in R&D?

I created this map some weeks ago with a dataset from the OECD. I wanted to visualize the role of research and development (R&D) in different European countries. The results aren’t to surprising: There seems to be a correlation with the wealth of the country. Switzerland is the country which spends the most on R&D.

Colors and the number of the countries have a different meaning, which is rather confusing.¬† I tried to put more information on the map, but I have to think of a better way in the future. And I made two mistakes: I didn’t show clearly¬† that the was no data for Ireland and I used a map-shapefile which labeled the Krim as Russian territory.