Table 3. Proportion of the population of developing countries with access at each level, in 1990 and 2008, to sanitation and water supply.

Level of Access	Proportion with Access (%)
	1990	2008
Excreta disposal
Open defecation	32	21
Unimproved	18	14
Shared	9	13
Improved	41	52
Water supply
Unimproved	29	16
Other improved	32	35
House connection	39	49

Notes: “Unimproved” sanitation facilities are those with no hygienic separation of faeces from human contact; e.g. open pit, platform or bucket latrines. “Improved public” water sources include public taps or standpipes, tube wells or boreholes, protected dug wells and rainwater collection. “Piped water at home” means inside the user's dwelling, plot or yard. Source: [4].