Malawi is a country in sub-Saharan Africa bordering Mozambique, Tanzania and Zambia. It has an area of approximately 118000 km 2 and is divided into northern, central and southern regions. It has an estimated population of 13 million, 47% of whom are under 15 years of age and just 5% over 60 years. Its economy is largely based on agriculture, with tobacco being the main export. The projected growth in gross domestic product (GDP) for 2007 was 8.8%; GDP per capita was $284 per annum.