It's a big place, with a big population. While it may well be true that 63% of the female population of some random small town in some random English-speaking country is named Elizabeth or one of its (no ', please) variants, have you considered the population of India? China? Malaysia? Nigeria? Indonesia? If not, perhaps you should, before you try to perpetuate silly myths.
Or, of course, you could do something really interesting and check the statistics ... .