Punjab has the largest economy in Pakistan, contributing most to the national GDP. The province's economy has quadrupled since 1972. Its share of Pakistan's GDP was 54.7% in 2000 and 59% as of 2010. It is especially dominant in the service and agriculture sectors of Pakistan's economy. With its contribution ranging from 52.1% to 64.5% in the Service Sector and 56.1% to 61.5% in the agriculture sector. It is also major manpower contributor because it has largest pool of professionals and highly skilled (technically trained) manpower in Pakistan. It is also dominant in the manufacturing sector, though the dominance is not as huge, with historical contributions raging from a low of 44% to a high of 52.6%. In 2007, Punjab achieved a growth rate of 7.8% and during the period 2002–03 to 2007–08, its economy grew at a rate of between 7% to 8% per year. and during 2008–09 grew at 6% against the total GDP growth of Pakistan at 4%.