▁world ▁when ▁it ▁became ▁independent ▁in ▁ 1 9 6 6 ▁to ▁a ▁" middle ▁income " ▁nation , ▁with ▁$ 9 , 2 0 0 ▁per ▁cap ita ▁income ▁in ▁ 2 0 0 4 . ▁L arg ely ▁because ▁of ▁this , ▁B ots w ana ▁is ▁considered ▁by ▁two ▁major ▁invest ment ▁services ▁to ▁be ▁the ▁saf est ▁credit ▁risk ▁in ▁Africa . ▁ ▁Diam onds ▁account ▁for ▁fully ▁one ▁third ▁of ▁the ▁nation ' s ▁G DP , ▁over ▁ 9 0 % ▁of ▁ear nings ▁from ▁exports , ▁and ▁ 5 0 % ▁of ▁government ▁reven ues . ▁Deb sw ana ▁is ▁the ▁largest ▁non - g overn ment ▁employ er ▁in ▁the ▁country , ▁employ ing ▁approximately ▁ 6 , 3 0 0 ▁people , ▁of ▁whom ▁over ▁ 9 3 % ▁are ▁B ats w ana . ▁Deb sw ana ▁is ▁also ▁the ▁largest ▁ear ner ▁of ▁foreign ▁currency . ▁ ▁Crit ic ism ▁ ▁Human ▁rights ▁Deb sw ana ▁has ▁been ▁critic ised ▁by ▁the ▁international ▁ind igen ous ▁rights ▁organisation , ▁Sur v ival ▁International , ▁for ▁not ▁respect ing ▁the ▁human ▁rights ▁of ▁the ▁Bush men ▁living ▁in ▁B ots w ana . ▁Since ▁the ▁mid - e ight ies , ▁Sur v ival ▁International ▁has ▁published ▁reports ▁that ▁the ▁B ots w ana ▁government ▁has ▁conducted ▁a ▁campaign ▁of ▁har ass ment ▁to ▁drive ▁them ▁out ▁and ▁give ▁way ▁to ▁min ing ▁expl oration . ▁Louis ▁N ch indo , ▁Form er