Distribution of Khat Chewing by Regions. Illustrates the incidence of khat chewing in each community cluster, in each region. The size of the community bubble corresponds to the prevalence of khat within that community. The bigger the bubble, the higher the prevalence of khat chewing in that community. Mapped by the authors using the Ethiopian Demographic and Health Surveys (2011 and 2016) and QGIS (V 3.0.2) software.