The popularity of names for Scotland are given here:
http://www.gro-scotland.gov.uk/statistics/publications-and-data/popular-names/index.html
Gives you rank and also the number of children registered every year. The most common names are very common and then it drops off considerably. Some of the unusual names are very unusual!
A bit of jiggery-pokery in Excel allows you to calculate the frequency of each name.
With Thud we thought we had a fairly unique name (Hayden), although every other Scottish kid is called hud, and then we met another Thud in the park. For Wifey and Me there is only the one.