Barcelona 2,217 Berlin 1,461 Brussels 579 Buenos Aires 10,000 Hong Kong 10,523 London 4,466 Los Angeles 2,160 Madrid 1,981 Montreal 3,352 Moscow 7,784 New York 5,900 Oslo 764 Paris 6,675 Rio de Janeiro 6,007 Singapore 4,871 Stockholm 2,159 Sydney 8,107 Tehran 7,522 Vienna 411