In your mind it might be insignificant, but not mine. It's not the amount so much it's the timing. Have a closer look Crazy.
The Jan 15th, is the posted date, which means Jan 01 - 15. I don't think these numbers went up on or after the 11th. Do you really? I'm not thinkin so! But you can try to convince in your post if you like?
My guess is between the 01-10. I think there's a similair pattern, if you look deeper Crazy!
Anyway, busy for the day, so if you have a reply, can't answer it till tomorrow.
Timing is everything. Like I say, someone is way smarter than me!