American-style striptease, closely associated with contemporary clubs around the world, began to appear outside North America in the post-World War II era, emerging in Asian performances during the late 1940s and in European theaters by 1950. A contemporary example, the American Spearmint Rhino chain, has clubs located in the UK, Russia, and Australia, as well as the United States. In 2003, the company's London location reportedly made GB£3 per minute. Strip clubs offering American striptease and other adult entertainment services have been established on six of seven continents (all except Antarctica), and the demand for these types of business is soaring in economically developing nations. Most adult entertainment companies, which include strip clubs, are in privately held ownership.