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
Vadsø Airport Norving planned to operate with their Britten-Norman Islanders and Britten-Norman Trislanders. The government opted to selected Widerøe and their Twin Otters, citing the need for a single operator for all subsidized regional routes in the country. Vadsø Airport opened on 1 August 1974 at the same time as Sørkjosen Airport, Hammerfest Airport, Mehamn Airport and Berlevåg Airport. The airport featured a combined control tower and terminal, which had a capacity for 30 people. Twin Otters landed at Vadsø four times daily. Norving started a service from Kirkenes via Vadsø to Båtsfjord Airport in January 1975. However, they did not have