I posted this a while ago and repeat this amazing quote: "Sanitation is more important than independence." Mahatma Ghandi
Details HERE You will find more statistics at Statista Figures and source for the above info from World Bank HERE. All world regions are thankfully reducing the numbers but incredibly some individual countries are worse than in 2000 (the above and linked info is from 2015). At the risk of appearing flippant, you'll note where most of the 'shit-hole countries' are...even a darker dot on the western end of one of the Caribbean islands...[thinks]
It's a while until World Toilet Day (Nov 19th) but the World Toilet Organisation (oh yes) have their work cut out and need support.