Top 20 Countries - HDI without and with inequality adjusted.
Enter an answer into the box. Updated 2023. HDI is calculated with and without inequality. Some interesting differences develop although not as stark as in previous years.
The history recounted in Wikipedia seems to differ from what you say above. Wikipedia seems to be saying that the HDI was calculated without an income-inequality adjustment from 1990 through 2009, and that the IHDI was a 2010 innovation.