There is absoultely no way it is 9 percent of people in the United States, It's closer to one percent of total population.
24-hour rapid survey across over 29,000 internet-connected people in 8 of the largest cryptocurrency markets (US, UK, Germany, Brazil, Japan, South Korea, China and India)
Not 9% of the people, but 9% of the internet-connected people.
You can automatically eliminate most of the grandpas and grandmas