Home to an estimated 15.9% of the world’s proven oil reserves, Saudi Arabia is the single largest economy in the Middle East and North Africa. According to the Ministry of Finance, real GDP grew by 3.8% to $746bn in 2013. While oil income is expected to continue to account for the majority of government revenues for the foreseeable future, the non-oil sector has expanded significantly in recent decades growing 9.3% in 2013.