Oh, this is so neat! I used to give a talk a few years ago on this exact subject and could have really made good use of all this data! (The "History of the Web/How did we get here, anyway?) section always elicited quite a laugh.)
"Two 2016 sites, Xfinity.com and Gilt.com, on the other hand, are even more similar: They both have a menu bar on the top and are primarily white and black with images."
Based on Jakob's Law, that might be a good thing for some users, right?