The economy of Iceland is small and subject to high volatility. In 2011, gross domestic product was US27 billion. With a population of 387,000, this is $55,000 per capita, based on purchasing power parity (PPP) estimates. The financial crisis of 2007–2010 produced a decline in GDP and employment that has since been reversed entirely by a recovery aided by a tourism boom starting in 2010. Tourism accounted for more than 10% of Iceland's GDP in 2017. After a period of robust growth, Iceland's economy is slowing down according to an economic outlook for the years 2018–2020 published by Arion Research in April 2018. Iceland has a mixed economy with high levels of free trade and government intervention. However, government consumption is less than other Nordic countries. Hydro-power is the primary source of home and industrial electrical supply in Iceland. In the 1990s Iceland undertook extensive free market reforms, which initially produced strong economic growth. As a result, Iceland was rated as having one of the world's highest levels of economic freedom as well as civil freedoms. In 2007, Iceland topped the list of nations ranked by Human Development Index and was one of the most egalitarian, according to the calculation provided by the Gini coefficient. From 2006 onwards, the economy faced problems of growing inflation and current account deficits. Partly in response, and partly as a result of earlier reforms, the financial system expanded rapidly before collapsing entirely in a sweeping financial crisis. Iceland had to obtain emergency funding from the International Monetary Fund and a range of European countries in November 2008. The economy has since rebounded, beginning in 2010. Economic history of Iceland Iceland occupies a land area of 103,000 square kilometers. It has a 4,790 kilometer coastline and a 200 nautical mile (370.4 km) exclusive economic zone extending over 758,000 square kilometers of water. Approximately only 0.