I'm not sure about the pie chart
I think it's how popular certain types are
The last graph shows the number of specimens per type
The long bar is Reimu and Marisa combined

1996? Touhou itself was barely around by then.

I actually was going to question this as soon as I saw it 2 hours ago but I realized that this is probably historical fact in ringyou's fictional yuniverse.

After all, there are stories where yukkuris exist since caveman times and possibly even longer than that.

Finished the rest of the translation, but I still don't understand what the hell is the line of notice on the last chart is supposed to be. Where do these "yu" and then "yukkuri" come from? Are they supposed to be from a different part of the document cited in the end?

TosylChloride said:

Where do these "yu" and then "yukkuri" come from? Are they supposed to be from a different part of the document cited in the end?

Probably something related to his previous comics too
Most likely, it's about how Reimu/Marisa yukkuri are not considered "yukkuri" anymore, but rather pests, compost, etc etc
So "yu" is to be seen as "not really a yukkuri"
But of course I'm making this up on assumptions, after all 99% of his works are untranslated

i'm actually crying right now, not because it's so detailed, but the sad fact that this chart is actually better than my science fair project