The World Happiness Report measures of happiness since 2012 published yearly by the United Nations Sustainable Development Solutions Network. (http://worldhappiness.report) The complex report measures well-being according to freedom to make life choices, corruption, generosity, economy.
The most and least happy countries:
(higher figures mean more happiness)
Denmark 7.5
Finland 7.5
Iceland 7.5
Norway 7.5
Switzerland 7.5
Netherlands 7.4
Australia 7.3
Canada 7.3
New Zealand 7.3
Sweden 7.3
Israel 7.2
Costa Rica 7.1
Austria 7.0
Germany 7.0
Ireland 7.0
United States 7.0
Belgium 6.9
Luxembourg 6.9
United Kingdom 6.7
Argentina 6.6>
Brazil 6.6
Czech Republic 6.6
Chile 6.6
Mexico 6.6
United Arab Emirates 6.6
Burundi 2.9
Tanzania 3.3
Guinea 3.5
Liberia 3.5
Rwanda 3.5
Togo 3.5
Syria 3.5
Haiti 3.6
Madagascar 3.6
South Sudan 3.6
Yemen 3.6
Benin 3.7
Afghanistan 3.8
Angola 3.8
Botswana 3.8
Lesotho 3.8
Chad 3.9
Zimbabwe 3.9
Burkina Faso 4.0
Malawi 4.0
Niger 4.0
Ghana 4.1
Sudan 4.1
Uganda 4.1
Ukraine 4.1