Alright let's have a look.
August and September 2016 showing up noticeably compared to the charts of others - that works for me :)
Other than that, the accounts/votes seem to follow the overall account creation figures I think. December 2018/Jan 2019 a bit quiet as far as hunting for new authors, at least I have 5 in the January column! :D
Cheers!
I love how supportive you are @abh12345 :)