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Good point, they are quite old, though the second one shows price up to Q2 2018, and shows how each cycle in bitcoin gets longer and longer.

I guess it all depends on what you define a "cycle" as. In this case it looks as though there has only been 3 cycles in Bitcoin's history according to the charts. I see about 6 or so, but that is just me. :)

Aha, I understand, thanks for clarifying that.