This comment is probably gonna be annoying but its just an exercise in experimental design for me.
When measuring births, there's also a lot of other factors to rule out. I take this graph as saying "Humans tend to have sex in a specific season" and that's what I'm going to respond to.
Some other factors may be that theres more failed pregnancies during specific times of the year, and the sex rate per season is relatively constant. Maybe humans tend to have sex in ways that conceive during specific times of the year. There's really not conclusive evidence of a mating season given this graph, although it is a helpful visual when it comes to looking at birth rates.
I would break it into an interface that abstracts the sorting algorithm so that the sorting logic is decoupled from comparison logic or from the visuals. This would make it so that you can use different sorting algorithms and compare between them to see which one seems the most magical.
Magical might mean something different between us, so I don't want to assume and just give you an algo.