Countries are grouped based on the OECD Better Life Index, using mean household net adjusted disposable income, updated each year.
Group 1:
Australia, Austria, Belgium, Canada, Denmark, France, Finland, Germany, Greenland, Grenada, Hong Kong, Iceland, Ireland, Liechtenstein, Luxembourg, Macau, Malta, Monaco, Netherlands, New Zealand, Norway, Qatar, San Marino, Singapore, Sweden, Switzerland, Taiwan, United Arab emirates, United Kingdom, United States
Group 2:
Cyprus, Czech Republic, Israel, Italy, Japan, Spain
Group 3:
Bahamas, Brunei, Estonia, Hungary, Lebanon, Panama, Poland, Portugal, Slovak Republic, Saudi Arabia, Slovenia, South Korea
Group 4:
Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Azerbaijan, Bahamas, Bangladesh, Barbados, Belize, Benin, Bhutan, Bolivia, Bosnia & Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Central African Republic, Chad, China, Chile, Colombia, Comoros, Congo, Costa Rica, Croatia, Cuba, Djibouti, Dominican Republic, East Timor, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Ethiopia, Fiji, Gabon, Gambia, Georgia, Ghana, Greece, Guatemala, Guinea-Bissau, Guyana, Haiti, Honduras, India, Indonesia, Iran, Iraq, Ivory Coast, Jamaica, Jordan, Kazakhstan, Kenya, Kosovo, Kyrgyzstan, Laos, Latvia, Lesotho, Liberia, Libya, Lithuania, Madagascar, Malawi, Malaysia, Maldives, Mali, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Mongolia, Montenegro, Morocco, Mozambique, Myanmar, Namibia, Nepal, Nicaragua, Niger, Nigeria, North Macedonia, Oman, Pakistan, Papua New Guinea, Paraguay, Peru, Philippines, Puerto Rico, Romania, Russia, Rwanda, Saint Lucia, Saint Vincent & the Grenadines, Samoa, Sao Tome and Principe, Senegal, Serbia, Seychelles, Sierra Leone, Solomon Islands, Somalia, South Africa, Sri Lanka, Sudan, Suriname, Swaziland, Syria, Tajikistan, Tanzania, Thailand, Togo, Trinidad & Tobago, Tunisia, Turkmenistan, Turkey, Uganda, Ukraine, Uruguay, Uzbekistan, Vanuato, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe
