After 80 years as a British Protectorate, Botswana gained independence in 1965. It is a landlocked country in of approximately 582,000 square kilometres. It shares its borders with Zimbabwe, South Africa, Namibia and Zambia. The population is 1,326,796 (de facto) as per the 1991 national census statistics. The country is often referred to as the fastest growing mixed economy in the region. The changing structure of the economy is dominated by the mineral sector and greatly affected by movements in the international markets. The Gross Domestic Product (GOP) grew by 3.1 per cent in 1995 compared to 4.1 per cent in 1994. However, the non-mining GOP increased by 5.5 per cent in 1995 compared to 2.3 per cent in 1993 which underpins the government's effort of diversifying the economy.