and export of cinnamon, rubber, and Ceylon tea, which remains a trademark national export. The development of modern ports under British rule raised the strategic importance of the island as a centre of trade. From 1948 to 1977, socialism strongly influenced the government's economic policies. Colonial plantations were dismantled, industries were nationalised, and a welfare state established. In 1977, the free market economy was introduced to the country, incorporating privatisation, deregulation, and the promotion of private enterprise. While the production and export of tea, rubber, coffee, sugar, and other commodities remain important, industrialisation has increased the importance of food processing, textiles, telecommunications, and finance. The country's main economic sectors are tourism, tea export, clothing, rice production, and other agricultural products. In addition to these economic sectors, overseas employment, especially in the Middle East, contributes substantially in foreign exchange. , the service sector makes up 59.7% of GDP, the industrial sector 26.2%, and the agriculture sector 8.4%. The private sector accounts for 85% of the economy. China, India and the United States are Sri Lanka's largest trading partners. Economic disparities exist between the provinces with the Western Province contributing 45.1% of the GDP and the Southern Province and the Central Province contributing 10.7% and 10%, respectively. With the end of the war, the Northern Province reported a record 22.9% GDP growth in 2010. The per capita income of Sri Lanka doubled from 2005 to 2011. During the same period, poverty dropped from 15.2% to 7.6%, unemployment rate dropped from 7.2% to 4.9%, market capitalisation of the Colombo Stock Exchange quadrupled, and the budget deficit doubled. 99% of the households in Sri Lanka are electrified; 93.2% of the population have access to safe drinking water; and 53.1% have access to pipe-borne water. Income inequality has also dropped in recent years, indicated by a Gini coefficient of 0.36 in 2010. The 2011 Global Competitiveness Report, published by the World Economic Forum, described Sri Lanka's economy as transitioning from the factor-driven stage to the efficiency-driven stage and that it ranked 52nd in global competitiveness. Also, out of the 142 countries surveyed, Sri Lanka ranked 45th in health and primary education, 32nd in business sophistication, 42nd in innovation, and 41st in goods market efficiency. In 2016, Sri Lanka ranked 5th in the World Giving Index, registering high levels of contentment and charitable behaviour in its society. In 2010, The New York Times placed Sri Lanka