Note that this article is plotting "% of women 40-45 currently married". Limitations: 1) only women, 2) "currently married" instead of "ever married", 3) the 40-45 age band is when kids finish HS if you had them in your early 20s, which could juice the divorce rate. I tried to get a broader picture from data.census.gov, but I don't know how to navigate it well enough to recreate the Brookings graph.

https://data.census.gov/table?t=Marital+Status+and+Marital+H...