This graph shows the national numbers of deaths due to diarrhea from inadequate drinking water in 2016. This is the only year that data is available, which makes comparisons and analyses over time impossible. This issue remains poorly understood due to a lack of data. However, it is known that contaminated water sources increase the risk to suffer from diarrhea, which can cause a more severe course of disease. Available data indicates cause for concern, given the expected increase of water insecurity.