Why does the 65+ go down some days? Is that because seniors are dying faster than they can get vaccinated?
Of the 1,357,036 reports of adverse events currently published to VAERs, 40% (545,337) are for Covid 'vaccines.' Does that seem right to you? Less than one year of 'vaccination' accounts for 40% of all adverse events reported in the last 30 years?

“Why does the 65+ go down some days?”
It seems to be just be due to slight rounding errors and administrative reporting revisions. Things like, Oops, the Oshkosh report got counted twice yesterday, or Dang, the key stuck and 66,000 registered, instead of 6,000 for Kalamazoo.
I don’t recall it being more than a 0.1% adjustment downward, unless it comes right after an unusual jump.