It's a survey conducted by ING Bank and the respondents are from Europe, The U.S.A, and Austalia (15 countries in total ~15,000 respondents)
The results are not bad for the reputation of cryptocurrency. I mean, look, in Europe, 66% have heard of the technology, 25% indicated they expect to own cryptocurrency, 35% in Europe agree Bitcoin is the future of spending online.
To me, cryptocurrency is more mainstream than what we can think and hear. Sure, it's not yet in each house but it isn't bad as of now
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The numbers I find very interesting and from my personal experience i can say that they are quite suitable. If already about 66% of people in europe heard about crypto, i would like to get to know the numbers from asia or the whole world. I think it's because of the last hype from the end of 2017, early 2018, when Bitcoin and altcoins also got a lot of attention in the mainstream media. I can imagine that the numbers will rise in the next few years and we will soon see 99% in europe.