The polling organization Gallup asked people in 135 countries whether they had, in the last month, donated money to a charity, volunteered their time to an organization, or helped a stranger. Gallup’s results, which form the basis of the World Giving Index 2014, indicate that approximately 2.3 billion people, a third of the world’s population, perform at least one altruistic act per month.
民调组织盖洛普公司（Gallup）询问了135个国家的人在过去一个月中是否为慈善组织捐过钱、为某个组织贡献义务劳动，或者帮助过某个陌生人。盖洛普调查的结果——也是2014年世界奉献指数（World Giving Index 2014）的基础——表明大约23亿人，即世界人口的三分之一，每个月至少会有一次利他行为。