Sanitation facilities coverage, World, 2000 to 2015

Number of people with access to different sanitation facilities. 'At least basic' are improved sanitation facilities not shared with other households; 'limited' are improved
facilities shared with other households; 'unimproved' are facilities without a flush/pour flush (to piped sewer system, septic tank, pit latrine), ventilated improved pit
(VIP) latrine, pit latrine with slab, or composting toilet.