I barely have time as it it. Please, don't make me do the writers, too!
Also, if you actually look into the graph, note that data points have X axis error bars of +-1.
For those who don't want to open Desmos:
Show
Edit: Added the Harry spike for that timeline where he had a kid with Tom's daughter, as well as a gap for Neelix and Tuvok during the whole Tuvix thing.
Another Edit: Fixed the line connecting episodes 69 and 70 for Neelix.
In fairness, by the end of the series she was out of his age range… 4.