Sixtieth \Six"ti*eth\, a. [As. sixtiogo[eth]a, sixtigo[eth]a.] 1. Next in order after the fifty-ninth.
2. Constituting or being one one of sixty equal parts into which anything is divided.
Sixtieth \Six"ti*eth\, n. 1. The quotient of a unit divided by sixty; one of sixty equal parts forming a whole.
2. The next in order after the fifty-ninth; the tenth after the fiftieth.
South Africa, with a gross domestic product of Dollars 120bn and one of the world's 25 biggest economies, ranks 93 in terms of human development, and sixtieth in terms of income a head.