It makes up 95% of the cryptocurrency cases under investigation by law enforcement.
source https://www.google.com/url?rct=j&sa=t&url=https://asgardia.space/en/news/Bitcoin-is-the-Number-One-Choice-of-Cryptocurrency-for-Illegal-Activities&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNH_iHpvC_c3xvyWPHvY4b5DT_bIGA
