From the Introduction: "This year's Internet Crime Report highlights the IC3's [Internet Crime Complaint Center] efforts to monitor trending scams such as Business Email Compromise (BEC), Ransomware, Elder Fraud, and Tech Support Fraud. As the report indicates, in 2019, IC3 received a total of 467,361 complaints with reported losses exceeding $3.5 billion. The most prevalent crime types reported were Phishing/Vishing/Smishing/Pharming, Non-Payment/Non-Delivery, Extortion, and Personal Data Breach. The top three crime types with the highest reported losses were BEC, Confidence/Romance Fraud, and Spoofing. More details on each of these scams can be found in this report."
FBI Internet Crime Complaint Center: https://www.ic3.gov/