Singapore’s Changi Airport is one of Asia’s largest cargo airports and is served by over 6,500 weekly flights connecting to 280 cities in 60 countries, handling close to 2 million tonnes of cargo annually. The country also boasts the world’s busiest transhipment hub, handling about one-seventh of the world's container transhipment throughput or 31.24 million TEUs of containers in 2013. Singapore is connected by 200 shipping lines to 600 ports in 123 countries, with daily sailings to every major port of call in the world. It is also proximate to the world’s major markets, being situated within a seven-hour flight radius to half of the world’s population in Asia Pacific.