Bulgaria vs Tonga: Reduction in Human Development Index when adjusting for inequalities

Bulgaria

11.5%

in 2023

Tonga

11.3%

in 2023

Bulgaria rank

113th

Tonga rank

114th

Reduction in Human Development Index when adjusting for inequalities over time

Bulgaria currently reports 11.5% against 11.3% in Tonga, a difference of 0.2%.

Across all 5 years both countries report, Bulgaria has been ahead every year.

Bulgaria ranks 113th and Tonga ranks 114th of 166 countries.

Indicator: Reduction in Human Development Index when adjusting for inequalities
Unit: %
Source: UNDP, Human Development Report (2025) – with minor processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 166 places, 2,131 data points, 2010–2023
Last refreshed: 07 August 2026

Percentage difference between the IHDI value and the HDI value.