we're getting greedier

According to the 1999 Human Development Report, in 1820 the fifth of the world's population living in the world's richest countries collectively received three times the combined income of the fifth of the world's population living in the poorest countries. A century later this raio had increased to 11 to 1. By 1960 it was 30 to 1; by 1990, 60 to 1; and by 1997, 74 to 1.
, in One World