Which African country best overcame difficulties faced after gaining independence from colonial rule?

Botswana, which is a small landlocked country in southern Africa, has been a shining example of economic success for Africa's post-colonial legacy. The country, which gained independence from Great Britain in 1966, was one of the poorest countries on the continent at transition. It quickly installed a representative democracy to replace the colonial government. In the thirty years that succeeded Botswana's independence, Botswana experienced business growth at a rate of 9%. This is made even more remarkable when considering the geographic challenges that the country faces in being landlocked and having 70% of its territory falling in the Kalahari Desert.

Today, Botswana is one of the fastest growing economies in the world. It's gross domestic product per capita of $14,000 ranks fourth in the continent of Africa. Utilizing the measurement of Human Development Index (HDI), Botswana ranks first in all of Africa. Botswana has one of the most advanced banking systems on the continent, which has been fueled by resource development. Resources that are produced include precious metals, diamonds, and even fossil fuels.