According to this story at ČeskÃ© noviny and this story at Yahoo!, the Czechs are tied with the French and the Croatians in their sexual activity, reporting 144 times per year. Hungarians lead the table with 152 times, followed closely by the Bulgarians with 151. Singaporeans are at the bottom of the table (and maybe in danger of relegation?) with 96 times per year.
The study was commissioned by condom manufacturer (and my sometimes DJ sponsor) Durex, In case you were wondering, here’s how the nations fared: