Bitcoin is getting known in really big countries now a days because of its popularity people indulging themselves to the most popular thing on earth but to be honest we are not yet on the quarter part of those people who uses money on earth, but still despite of the declining value of btc we are still surviving and managing to turn the tag on green in many times.
To be honest in some countries which called "developing" uses bitcoin to scam others who were innocent on using them which makes other bother to invest on to it. And so far bitcoin did not give any marks of affecting in economic growth on one country.