High population density and unemployment have led to emigration. Most foreigners living in Malta are British nationals and their dependents. Malta has no national refugee law, and all recognized refugees in Malta are resettled in third countries. Since 1983, Malta has received some 2,400 asylum applications. Of these, 1,860 have been resettled. During the first half of 1999, another 53 asylum applications were submitted. The main countries of origin include Sudan, Algeria, Sierra Leone, and Palestine. In 2000 the net migration rate was 1.4 migrants per 1,000 population. The total number of migrants that year was 9,000. The government views the migration levels as satisfactory.