Indeed, mea culpa it is too late. I ultimately had to go to the source to confirm:

https://www.pewresearch.org/social-trends/2020/01/09/trends-...

Where it was clearer:

> Even so, the gains for both lower- and middle-income families were outdistanced by upper-income families, whose median wealth increased by 85% over the same period, from $344,100 in 1983 to $636,000 in 2001. (Figures are expressed in 2018 dollars.)