I'd suggest removing the section for items over 30th level, fwiw... it detracts from the chart's usefulness at the high end.
That chart is useful for seeing the total value of goods that someone acquires, sure, but doesn't show what I expected to find - any kind of comparison to the guidelines, loss of treasure, etc. Is it just you making up a new suggested treasure by level guideline without saying why or how you're getting your values?
Just the other day I made a 21st level character by giving him items at every single level (level +2 as you get to each next level, like in your document). And at 21st level he's using 1x22nd, 1x20th, 1x18th, 3x16th, 1x14th, 1x12th, 1x10th, 1x7th. Plus he'd probably have a bit more 10th or lower things like salves of power if I converted a couple more things into residuum. Which is totally inline with what he'd have if he were created using the DMG guidelines. A couple of those are effectively converting level 19 items into 16ths, but those were more useful to him than the alternative. And yeah, upgrading to the new + every five levels is immensely notable.
It's even worse if you're talking about a dual wielding character, who will be trying to upgrade two weapons, armor, and neck.
And, again, I created a 14th level character for a game just the other day, and I've got better items than many of the people already in the game who've been getting full treasure (actually, probably at least double treasure based on what I could see)