芬兰蝉联2018和2019 年世界196个国家中最happy的国家。
中国从2017年 79位，2018年的第86位，跌至2019年第93位。
中国还一直缺少一项统计：Foreign-borned happiness index （外国出生的中国人的幸福指数）。


不知何故， 原缺2014年报告。16年分上下卷，下卷概述应用统计模型。




FYI

The First World Happiness Report, published by the Earth Institute and co-edited by the institute’s director, Jeffrey Sachs, in 2012 reflects a new worldwide demand for more attention to happiness and absence of misery as criteria for government policy. It reviews the state of happiness in the world today and shows how the new science of happiness explains personal and national variations in happiness.

The happiest countries in the world are all in Northern Europe (Denmark, Norway, Finland, Netherlands). Their average life evaluation score is 7.6 on a 0-to-10 scale. The least happy countries are all poor countries in Sub-Saharan Africa (Togo, Benin, Central African Republic, Sierra Leone)