<P> Tourism in Iceland has grown considerably in economic significance in the past 15 years . As of 2016, the tourism industry is estimated to contribute about 10 percent to the Icelandic GDP; the number of foreign visitors is set to exceed 2,000,000 by the end of 2017; tourism is responsible for a share of nearly 30 percent of the country's export revenue . </P> <P> Services provided to foreign tourists were for a long time an insignificant part of the Icelandic economy, rarely contributing more than 2 percent to GDP, even long after the advent of international air travel . Until the early 1980s, the number of foreign visitors to Iceland increased slowly and erratically, never exceeding 80,000 in a single year, and for many years after that only barely kept pace with the increase in the number of Icelanders traveling to and from the country . This situation lasted until the turn of the century, when the annual number of visitors exceeded the total resident population for the first time, at around 300,000 . </P>

How much impact does the tourist industry have on the icelandic economy