“Since the late 1980s, the classification of countries into income categories has transformed. The number of low-income countries has steadily declined, while the number of high-income countries has increased.

This shift reflects broader global economic developments, including sustained growth in many developing countries, greater integration into the global economy, and the effects of policy reforms and international organizations’ support. In 1987, 30% of reporting countries were classified as low-income and 25% as high-income countries. By 2024, these ratios shifted to 12% low-income and 40% high-income.”

From World Bank.