Most of the economic growth in Bahrain over the past decade was a result of the continuous development of its private sector. In 2013, Bahrain's CO2 emissions were 28.30 Mt representing 1.7% of the total Middle East emissions. Total population of Bahrain in 2010 was 1.2 million people, increasing with an average growth rate of 1.29%. It is projected that Bahrain’s population will reach 1.6 million in 2020 and 2.0 million in 2030. Total primary energy supply in 2013 was 13726 thousand tons of oil equivalent (ktoe), with 85% generated from natural gas and 15% from oil. Over the last five years, electricity generation in Bahrain grew by an average of 9% annually. Bahrain's Electricity and Water Authority (EWA) expects this level of growth will continue within the coming decade. Annual electricity demand in Bahrain has been growing at around 10% driven by low electricity tariffs, and growing energy demand from industrial sector.