Would love to see the 20 year trend.
Even that is less statistically significant than at first appears. Simply because all Muslim parents are expected to name their first-born son Mohammed (or one of its variants); whereas non-Muslim parents have a huge variety of names to choose from....an even larger variety given the lamentably fashionable current practice (deriving, it would appear, from the US) of giving your unfortunate child a synthetic or invented name, in the deluded hope it will confer distinction.