It's a fact: women are paid less than men in every part of the world, with data from the UN's International Labour Organization (ILO) revealing the global average gender pay gap is around 20%.

Women's wages are typically lower than men's due to a wide range of factors, such as under-representation in senior roles and over-representation in part-time positions. Other reasons include discrimination due to conscious and unconscious biases, as well as the fact that women tend to have more career breaks than men to raise children and care for elderly or ill family members.

Read on to discover the gender pay gaps in 30 selected countries, from the widest to the narrowest, based on figures from ILO, the Organisation for Economic Co-operation and Development (OECD), and other data sources.

All dollar amounts in US dollars.