From El Reg:

According to November 2008 stats (PDF) from Datamonitor – the international research firm headquartered in London – the world is still running 200 billion lines of COBOL code and about 5 billion lines are added to live systems every year. Believe it or not, between 1.5 and 2 million developers are still working with the 50-year-old programming language.

(Yeah, I’m looking at you, Ruby.)