One of the world's fastest growing economies, Dubai's gross domestic product is projected at US$107.1 billion, with a growth rate of 6.1% in 2014. Although a number of core elements of Dubai's trading infrastructure were built on the back of the oil industry, revenues from oil and natural gas account for less than 5% of the emirate's revenues. It is estimated that Dubai produces of oil a day and substantial quantities of gas from offshore fields. The emirate's share in the UAE's total gas revenues is about 2%. Dubai's oil reserves have diminished significantly and are expected to be exhausted in 20 years. Real estate and construction (22.6%), trade (16%), "entrepôt" (15%) and financial services (11%) are the largest contributors to Dubai's economy.