This reflects the need to reorient investments in the water supply sector by giving priority to the un-served cohort before investing in improving the level of service for those already with an acceptable level of basic services. Moreover, an apparent obstacle to improving water supply services in particular and sustainable development in general is the high population growth that seems to offset any progress made. As seen in figure 9, as of 2011, 92 per cent ofthe urban population had access to improved drinking water sources compared to only 73 per cent of the rural population.