Agatha Christie built "The Mousetrap" 35 years ago and the world has beaten a path to its door ever since. It has outlasted eight American presidents and as many British prime ministers, with no end in sight. Wednesday night's performance at St. Martin's Theater in London's West End was the 14,565th since the show opened on Nov. 25, 1952. The world's longest-running production cost 5,000, then about $20,000, to stage and has grossed more than $23.3 million. It has been a theatrical home for 222 actors and actresses, for whom 64 miles of shirts have been ironed. More than 7 million theatergoers have consumed 262 tons of ice cream on the premises. "The Mousetrap" has been translated into 24 languages and presented in 44 countries.