This is the latest article of countries where crypto is legal, countries that have banned crypto and also countries that neither legalized nor banned crypto.

16 countries where said to be crypto friendly
10 Countries where Bitcoin is banned as at March 2019
24 Countries where Bitcoin is neither legal nor illegal

https://cryptonews.com/guides/countries-in-which-bitcoin-is-banned-or-legal.htm


And this is a report of registrations of cryptocurrency around the world. Its covers about 130 countries

https://www.loc.gov/law/help/cryptocurrency/world-survey.php

I hope this helps your research.