Paris for 31 percent of the GDP of France. According to the Economist Intelligence Unit Worldwide Cost of Living Survey in 2018, Paris was the second-most expensive city in the world, behind Singapore and ahead of Zurich, Hong Kong, Oslo and Geneva. The city is a major rail, highway, and air-transport hub served by two international airports: Paris-Charles de Gaulle (the second busiest airport in Europe after London Heathrow Airport with 69.5 million passengers in 2017) and Paris-Orly. Opened in 1900, the city's subway system, the Paris Métro, serves 5.23 million passengers daily, and is the second busiest metro system in
Nakashibetsu Airport more overseas tourists to the region. Nakashibetsu Airport The airport serves Nakashibetsu and the nearby city of Nemuro. Nakashibetsu Airport was constructed as an Imperial Japanese Navy airfield in 1944. It opened for civilian use following the war in 1965, and scheduled service to Okadama Airport in Sapporo began in 1974, followed by service to New Chitose Airport in 1980 and Tokyo Haneda Airport in 1990. Chitose flights were suspended in 2008 but resumed following the termination of Okadama service in 2010. In 2011, the Hokkaido government announced that landing fees would be waived for international charter flights using the