Niger Mauritania Niger Nigeria Senegal Guinea Algeria Burkino Faso
Thar Namib Sahara Kalahari
Spain France Italy Britain
Bamako Segou Timbuktu Kayes
1960 1970 1980 1950
134 000 13.4 million 134 million 1.34 million
Djenne Bamako Gao Timbuktu
Congo Nile Niger Orange