Consumer, small business and commercial credit, debit and prepaid cards tied to the 50 largest issuers in Europe are ranked on pages 6 and 7. Those cards include Visa, Mastercard, American Express, Maestro, Diners Club, UnionPay and general purpose domestic-market-only brands. The top 50 operated from 30 countries. As of December 31, 2021, this group had 893.3 million payment cards in circulation that generated $3.308 trillion in purchase volume (spending for goods and services). Visa and Mastercard credit, debit and prepaid cards totaled 753.2 million. They accounted for 84.3% of all cards...