Because of Brunei's mostly urban population and the wealth deriving from oil and gas, forest use has been limited. Currently about 80 percent of Brunei's total land is covered by forests, nearly 60 percent of it virgin. Forestry accounted for only 0.3 percent of the total economic output in 1998. The government is committed to preserving the important environmental, biotechnological, and other economic and social functions of its forests and hopes to develop their potential as a tourist attraction. Consequently, logging, limited to 100,000 cubic meters annually, is confined to meeting local needs only, and timber extraction for export is strictly prohibited.