IF [Data] = 10 THEN [Country] END
Then use that on the labels shelf. What this will do is look through all of your underlying data. Any country you've designated as 10, (which) you made dark orange would have a label and the others would be NULL.
When you get some of the countries close together the labels will not default and overlap each other instead they are designed not to. Click on label shelf and at the bottom there is a check to allow overlapping marks and try that.
Yes Carl thanks for the idea.
I was just thinking that in the back of my mind.