Circles are inherently difficult for comparisons. Are they measure by area or diameter? Either way, the circle in a circle in overkill.
Why does the size of the light green circle change once the dark green circle is a larger value? That makes no sense at all.
If the exact numbers were not included, it would be impossible to compare countries.
Why show the top 9? That seems like an unusual way to select the countries.
Focus on either the raw values or the percentages. I'll figure this out once I explore the data.
Make it easier to compare countries.