Bing is Testing top searched persons or pages from the Wikipedia article. You can see this under Explore more at the right side of Bing Search result page.
Search Jesse Livermore on Bing. Scroll down, and you can see this feature on the right side, just after Knowledge graph. Here it shows the the results of top searched persons from Jesse Livermore’s wiki page.
Here is the Screenshot:
Here are more examples:
The data is fetched from Wikipedia. I dont know how accurate the data is. Anyway this is an interesting feature by Bing.
I checked this with Barry Schwartz on Twitter to check whether it is a new feature or not.