Rwanda dai na biye ne da kasar Mauritius, wadda bankin na duniya ya sanya a matsayin farko a wannan fanni, kuma kasa ta 49 a dukkanin fadin duniya baki daya.
Kasashen dake kan gaba a wannan bangare musamman daga kudu da hamadar sahara, sun hada da Mauritius, da Rwanda, da Morocco, da Botswana, da kuma Afirka ta kudu.(Saminu Alhassan)