Quite surprising that USA has the least savings, considering that it has always been known that USA is the place to go if you wan't to earn money. I doubt the accuracy of that article, especially because of the average salary that the USA has which is $47060 (source:  https://www.thebalancecareers.com/average-salary-information-for-us-workers-2060808).

Thats not even enough to buy a fraction of bitcoin.