The donor stats page list made WUs and the points but leave out detailed information of which projects are processed with those WU's. Exists a more detailed statistic for that?
AFAIK, there's no historical record for what WU was completed by which donor. If you want to do that, you will have to use third party tools like HFM.NET: https://github.com/harlam357/hfm-net
ETA:
Now ↞ Very Soon ↔ Soon ↔ Soon-ish ↔ Not Soon ↠ End Of Time
While it would be a nice feature, the primary focus of F@H Team is "does this feature enhance\increase science?" If the answer is no, it is placed on the back-burner which might be revisited (or not) at some point in future.
In your case, the feature would not improve or enhance science, instead, it would increase the level of complexities that the F@H Team has to look after since it is another thing that needs to be fed and watered over the next several years.
ETA:
Now ↞ Very Soon ↔ Soon ↔ Soon-ish ↔ Not Soon ↠ End Of Time
… hence the reason there are some 3rd party tools that deliver that type of function - they tend to have been developed by enthusiasts who want the converged data with historic trends that FAH does not have the resource to deliver given the focus on the science that needs to take precedence