Iceland has some of the world's highest levels of economic and civil freedoms. In 2007, Iceland was ranked as the most developed country in the world by the United Nations' Human Development Index. It was also the fourth most productive country per capita, and one of the most egalitarian, as rated by the Gini coefficient. Icelanders have a rich culture and heritage, such as cuisine and poetry, and the medieval Icelandic Sagas are internationally renowned. Iceland is a member of the UN, NATO, EFTA, EEA and OECD, but not of the European Union.