Wallis and Futuna: lowest 10%: NA%

highest 10%: NA%

West Bank: lowest 10%: NA%

highest 10%: NA%

Western Sahara: lowest 10%: NA%

highest 10%: NA%

World: lowest 10%: NA%

highest 10%: NA%

Yemen: lowest 10%: 2.3%

highest 10%: 30.8% (1992)