Before the civil war of 1989-1996, internal trade was carried on mainly by large firms, located in Monrovia, with branches in other principal towns. However, conflict destroyed nearly all businesses and production facilities and most foreign investors left the country. The infrastructure around major cities also suffered. As of 2002, domestic trade and manufacturing was still limited. A small business sector has resumed operations, but primarily through Lebanese and Indian investors. The economy of the nation is highly dependent on revenues from maritime licensing and timber exports. About 70% of the nation's work force is employed in agriculture (200 est.). Among rural peoples, trade is often by barter.