( CNN ) -- Perhaps money ca n't buy happiness . A recent Gallup report shows that Singapore 's wealthy population is the unhappiest -- less happy than the populations of Iraq , Haiti , Afghanistan , and Syria . Singaporeans were least likely to report having positive emotions -- despite the fact that they enjoy one of the highest per capita GDP values in the world . The international pollster measured `` positive emotions . '' Carried out last year in 148 countries , the survey asked around 1,000 persons in each country five questions about what positive experiences people had had the day before : if they had been well-rested , treated with respect , if they smiled or laughed a lot , and whether they 'd done or learnt something interesting . In Singapore , only 46 % of the interviewed answered `` yes '' to these questions , compared with 55 % reported from people in Haiti and Afghanistan . Even in Syria , where the uprisings that later developed into a civil war took place in 2011 , 60 % of the people asked answered yes to the survey 's questions . Economists in the United States have found that domestically , income only affects daily happiness when earning up to $ 75,000 annually . A higher income than that does n't make much of a difference for American citizens ' well-being , Gallup wrote . The population that reported the most positive emotions was Panama , a country with a per capita GDP ranking 90th in the world . In fact , eight out of the 10 happiest countries in the survey are located in Latin America . As for Singapore , this is not the first time it has come in last in a Gallup poll . Last month , Singapore ranked as the least emotional country , which measured the daily emotions of people in 150 countries during a three-year period . Top 10 happy countries . Panama ( 85 % ) Paraguay ( 85 % ) El Salvador ( 84 % ) Venezuela ( 84 % ) Trinidad and Tobago ( 83 % ) Thailand ( 83 % ) Guatemala ( 82 % ) Philippines ( 82 % ) Ecuador ( 81 % ) Costa Rica ( 81 % ) 10 least happy countries . Singapore ( 46 % ) Armenia ( 49 % ) Iraq ( 50 % ) Georgia ( 52 % ) Yemen ( 52 % ) Serbia ( 52 % ) Belarus ( 53 % ) Lithuania ( 54 % ) Madagascar ( 54 % ) Afghanistan ( 55 % ) Read more : Urban farming looking up in Singapore . Read more : Best place to buy property in Asia .
A Gallup survey found that people are least likely to report positive happiness . Singapore has one of the highest per capita GDPs globally . Some economists have found that income only increases happiness up to a certain amount . Singapore is the world 's happiest place .