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CATA CATB CATC CATE CATF CATG CATH CATI CATK CATL CATM CATN CATO CATP CATR CATS CATT CATU CATW CATY CATZ
Surnames shown in bold text represent around 90% of the population of Great Britain. All other names are very uncommon in the UK and we are unlikely to have any useful data on them.