Thanks. So rather than 'many countries', a small set of (mostly) relatively insignificant countries. Apologies in advance to any offended citizens therein.
From the CIA fact book (
https://www.cia.gov/library/publications/the-world-factbook/rankorder/2215rank.html), cryptocurrencies as a whole already have a larger amount of 'broad money' than
#122 AFGHANISTAN $6,945,000,000
#94 BOLIVIA $17,770,000,000
#72 ECUADOR $43,250,000,000
#124 MACEDONIA $6,308,000,000
#167 KYRGYZSTAN $1,333,000,000
And has been nearly as much as
#53 BANGLADESH $121,500,000,000 (Bangladesh? Really? I never would have guessed)
Though we have a ways to go before we swamp
#23 SAUDI ARABIA $513,300,000,000
Given now's listing on coinmarketcap.com of 95.877B USD.