The Financial Crimes Enforcement Network stated that so far in 2021, crypto exchange and financial institutions have reported nearly US$600 million in transactions to pay ransomware attackers. This is signifcantly higher than 2020's entire-year figure of US$416 million.
https://www.notebookcheck.net/US-FinCEN-watchdog-reports-that-companies-may-have-forked-out-nearly-US-600-million-in-ransomware-payments-through-2021.573488.0.html