KLM Royal Dutch Airlines is the oldest airline in the world, founded in 1919 and based in Amsterdam. It is a member of the SkyTeam alliance and as of 2011 had over 33,000 employees, including almost 2,700 pilots of which 115 are women. In 2010-2011, KLM carried over 23 million passengers and nearly 500,000 tons of freight, generating €8.6 billion in revenue.