1. 幸福指数
2. The happiness index is the first of its kind after the National Bureau of Statistics was called on to introduce a rating of people's satisfaction levels, as part of the ongoing effort to evaluate social and economic development.
可简写为 HI
例 A happiness index of Beijing residents believed to be China's first such poll has revealed that despite income contributing to happiness, people in the middle-income band are among the city's most content.