This South Pacific island economy is based primarily on small-scale agriculture, which provides a living for about two-thirds of the population. Fishing, offshore financial services, and tourism, with nearly 197,000 visitors in 2008, are other mainstays of the economy. Mineral deposits are negligible; the country has no known petroleum deposits. A small light industry sector caters to the local market. Tax revenues come mainly from import duties. Economic development is hindered by dependence on relatively few commodity exports, vulnerability to natural disasters, and long distances from main markets and between constituent islands. In response to foreign concerns, the government has promised to tighten regulation of its offshore financial center. In mid-2002, the government stepped up efforts to boost tourism through improved air connections, resort development, and cruise ship facilities. Agriculture, especially livestock farming, is a second target for growth. Australia and New Zealand are the main suppliers of tourists and foreign aid.