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
Sørkjosen Airport transferred from Nordreisa Municipality to the state. Sørkjosen was launched as part of a national network of regional short take-off and landing airport which was proposed in the mid-1960s. The final decision to build the airport was taken by Parliament in 1972. Both Widerøe and Norving applied to operate the subsidized regional routes in Finnmark, which included the route to Sørkjosen. Widerøe was awarded the contract in 1973. Sørkjosen Airport opened on 1 August 1974, the same day as four regional airports in Finnmark. A new fire station, serving both the airport and the municipality, was completed in 1992, costing