Nearly two-thirds of adults in the United States are interested in learning more about cryptocurrencies like Bitcoin (BTC) or holding them soon, according to a new survey.

Gemini, a crypto trading platform owned by Tyler and Cameron Winklevoss, released a new State of U.S. Crypto Report, providing insights about consumer trends in the crypto market in the U.S. The data was collected from a national survey of 3,000 U.S. adults aged 18 to 65 with $40,000 or more in household income.

The report points to a significant expansion and diversification of the nation’s crypto investors over the course of 2021. As many as 63% of respondents identified themselves as crypto-curious, meaning that they do not currently own crypto but are either willing to learn more or planning to buy crypto soon.

Based on survey findings, Gemini estimates that nearly 14% of the U.S. population — or 21.2 million adults — now owns cryptocurrency. Crypto investors are potentially set to double this year as roughly 13% of respondents indicated plans to purchase crypto in 2021. “This adds up to approximately 19.3 million adults — which would nearly double the current crypto investor population,” the report notes.

The survey also identified the potential growth of female crypto investors, which make up just 26% of current crypto holders, according to Gemini’s estimations. According to the survey, more women than men indicated a willingness to get into crypto soon, making up 53% of crypto-curious respondents interested in investing in crypto.

“This new research signals a valuable and welcome diversification of crypto’s investor base. A broader set of participants establishes a positive long-term evolution of the market,” Gemini chief operation officer Noah Perlman said. In order to help remove barriers to entry, the company will continue providing crypto education while also prioritizing security and smart regulation, he added.

Other reports released earlier this year have signaled promising trends in cryptocurrency adoption in the U.S. A March survey by Mizuho Securities estimated that 10% of the roughly $400 billion in stimulus funds given to U.S. residents could be used to purchase Bitcoin and stocks. According to a February 2021 poll by global consumer research platform Piplsay, 25% of Americans already own crypto, with another 27% planning to invest later this year.