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JOA JOB JOC JOD JOE JOF JOG JOH JOI JOJ JOK JOL JOM JON JOO JOP JOQ JOR JOS JOT JOU JOV JOW JOY JOZ
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.