Help me come up with more charts/analytics views for simple personal kanban board

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Hey everyone!

I'm currently working on a simple kanban board (for keeping track of tasks/projects) as a fun little side project, and right now I show 4 basic charts to the user:

• Weekly Task Count
• How Many Tasks Do You Have For Each Project?
• This Is How Many Tasks You've Done Each Week
• What You're Working On Right Now (# tasks per Project in the Doing lane)

I'd like to work on creating more charts to display to the user. For those of you who are interested in this sort of thing, what additional charts would you find helpful/useful/fun for you?

(You can see what the charts look like at https://mochiboard.com/analytics)

Thanks!