It rises roughly in line with absolute income per head, not relative income.

幸福感大体随着绝对人均收入而非相对收入而上升。

China, where income per head rose by 9% a year from 1990 to 2012, came third by the HDI measure.

在1990到2012年间人均年收入增长9%的中国在此衡量标准下排名第三。

The east has made progress, but income per head is still only 70% of that in the west (see chart).

虽然东部经济有在进步，但是人均工资却仍只有西部人的70%（见下表）。

Its real income per head is about a third of US levels.

它的人均实际收入大约是美国水平的三分之一。

By the 1870s, there was an increase in the  average income per head, which was between 50 and 200 percent when compared to the 18th century.

到 1870 年代，人均收入有所增加，与 18 世纪相比增加了 50% 到 200%。

But South Korea, where income per head rose less than half as quickly, came first. Four of the top ten HDI performers had annual income growth of less than 3% a head.

人均收入增速不敌中国一半的韩国却名列榜首。前十名中有四国人均年度收入增速低于3%。

The BRIC countries – Brazil, Russia, India, China – have also been quickly increasing their income per head – the money earned and the wealth possessed by each person.

金砖四国——巴西、俄罗斯、印度、中国——也一直在迅速增加人均收入——每个人挣的钱和拥有的财富。

A strategy of waiting for Indians to develop a taste for products that the global middle class indulges in—cars as income per head crosses one threshold, foreign holidays when it crosses the next—may lead to decades of frustration.

如果它们的策略是等待印度人喜欢上全球各地中产阶级享受的事物，那它们可能要苦苦等上几十年——等印度人的人均收入跨上一个台阶后喜欢上汽车，再跨上一个台阶后喜欢上出国度假。