The list of the top 10 richest countries in the world can vary depending on the criteria used to measure wealth. However, based on various sources, here are the top 10 richest countries in the world in terms of GDP per capita (adjusted for purchasing power parity) as of 2021:
Qatar
Macao SAR, China
Luxembourg
Singapore
Brunei Darussalam
Ireland
Norway
United Arab Emirates
Kuwait
Switzerland
It's worth noting that while GDP per capita is a common measure of wealth, it doesn't necessarily reflect the overall quality of life or well-being of a country's citizens. Other factors such as access to healthcare, education, and social services, as well as income inequality, can also play a significant role in determining a country's standard of living.