The UAE has developed from a juxtaposition of Bedouin tribes to one of the world's most wealthy states in only about 50 years. Economic growth has been impressive and steady throughout the history of this young confederation of emirates with brief periods of recessions only, e.g. in the global financial and economic crisis years 2008–09, and a couple of more mixed years starting in 2015 and persisting until 2019. Between 2000 and 2018, average real Gross Domestic Product (GDP) growth was at close to 4%. It is the second largest economy in the GCC (after Saudi Arabia), with a nominal gross domestic product (GDP) of US$414.2 billion, and a real GDP of 392.8 billion constant 2010 USD in 2018. Since its independence in 1971, the UAE's economy has grown by nearly 231 times to 1.45 trillion AED in 2013. The non-oil trade has grown to 1.2 trillion AED, a growth by around 28 times from 1981 to 2012. Backed by the world's seventh-largest oil deposits, and thanks to considerate investments combined with decided economic liberalism and firm Government control, the UAE has seen their real GDP more than triple in the last four decades. Nowadays the UAE is one of the world's richest countries, with GDP per capita almost 80% higher than OECD average.