Can anyone interpret these dates?

Seems to be something strange going on with these dates and dips
I have listed the dip strength from (4,3,2,1)

Please comment if you can see a correlation or sequence!


Unfortunately i suck at math and cannot see a correlation
I see however a falling wedge that may act as a support if another dip comes within this new Fibonacci ring.
Each Fibonacci circle ring has seen a dip.