I really struggle to get a good feeling of the differences between the countries. Would it be possible to give a color :
0 or no data : grey
from 1 to 10 : pale yellow
11 > 20 : Bright Yellow
21 > 30 : Yellow super saturated
31 > 40 : Yellow/orange
41 > 50 > : orange
51 > 60 : Orange redish saturated
61 > 70 : red
71 > 100 : dark red
