Arunachal Pradesh's gross state domestic product was estimated at US$706 million at current prices in 2004 and US$1.75 billion at current prices in 2012. Agriculture primarily drives the economy. Jhum, the local term used for shifting cultivation is being widely practised among the tribal groups, though owing to the gradual growth of other sources of income in the recent years, it is not being practised as prominently as it was earlier.