Fashion in names

Recent reports tell us that no babies were called Nigel last year (and, with apologies to some perfectly decent Nigels, I can think of reasons for that). More mysteriously, the most popular boy's name (in England? in the UK?) was Noah: are new parents obsessing about global warming and the coming deluge?

Living, as we do, next door to students gives us some indication of which names are current. But we were surpised to learn that the owner of the car which was gathering parking tickets outside our door was called Cosmo. I've only ever come across two Cosmos before: one was the Archbishop of Canterbury, the other was a fairly accurate knife thrower.

I wonder if he was named after either of them?