When were cloth diapers not used anymore?

Cloth diapers are still used by many people, and are especially popular outside of the United States. They have become much more popular in the US in recent years due to tecnology advances that have created better materials and the popularity of the environmental ('green') movement as well as easier distribution via the internet.

The first disposable diapers became available in the 1950s but were much too expensive for the average family to afford. However by the late 1980's, disposable diapers had become the norm.