In the developing world, sustained wealth creation and public-health advances have increased average life expectancy by 20 years since the mid-1970s, and adult illiteracy has been nearly halved in the last 30 years. Inequality among countries has decreased, with more than one billion people lifted out of extreme poverty in the last two decades alone.
在发展中世界，持续的财富创造和公共卫生领域的进步已经使平均寿命比1970年代中期提升了20岁 ，过去30年来成人文盲率已经减少了近半数。国家间的不平等已经有所下降，近过去20年内就有超过10亿人摆脱了极端贫困。