en.wikipedia.org/wiki/List_of_countries_by_wealth_per_adult

This sentence describes a table that is not present on the current page. The live article’s table of contents lists only one substantive section, “Mean and median wealth (UBS)” with two subsections (By region and By country), followed by See also, References, and External links. The body text likewise shows only the UBS-based tables before the article ends.

So the issue is not a disputed interpretation of the data source; it is a straightforward mismatch between the prose and the page’s actual contents. Readers looking for a World Inequality Database mean-wealth table farther down will not find one because it is not there.