The answer is the Major-Index VitaFutur,
a measure for Venture Option Quality (VoQ) of a Country
by one figure in the limits of 0 < measure < 2:
0: very bad; 0,5: bad; 1,0: moderate; 1,5: good; 2,0: very good
Explanation for "Venture Option Quality" (VoQ) Characteristics
VitaFutur for more Information
There are some more countries.
You may choose another country of your interest; the calculation is easy! You may do it by yourself.
All necessary information is available by internet.