GDP measures the value of goods and services produced in a country. India has one of the fastest growing economies in the world, with GDP growth of 9.4% in 2006-2007. The services sector contributes over half of India's GDP and grew at 10.7%, driven by industries like trade and finance. The industrial sector, led by manufacturing, contributes around a quarter of GDP and grew at 8.9%. Agriculture contributes about 17% of GDP but grew slower than other sectors at 2.6%, hampered by issues like uneven rainfall. GDP growth over the period 2003-2007 averaged 8.6% annually.