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
Mehamn Airport as alternative locations for the airport, and both received smaller airfields before Mehamn Airport opened in 1974. Widerøe operated de Havilland Canada Twin Otters until they were replaced with the Dash 8 in 1995. The airport served 14,392 passengers in 2014 and is the northern-most airport in Europe except Svalbard. Plans for an airport on Nordkinnhalvøya were first articulated by a committee appointed by the Finnmark County Municipality. Their 1966 report recommended that six regional airports be built in Finnmark, which included Mehamn and Kjøllefjord as a possible site. Simultaneously the national government starting on planning a national network of