DDI_BWA_1991_PHC_v01_M Development Economics Data Group 2012-02-29 NADA Version 01: (March 2012) Population and Housing Census 1991 PHC 1991 BWA_1991_PHC_v01_M Central Statistics Office (CSO) NADA Central Statistics Office Population and Housing Census [hh/popcen] Botswana National - Households - Individuals Census/enumeration data [cen] Face-to-face [f2f]