Bottom-right corner. Per-Patron funding is at $1.80, down 31.9%.No, the green bars are the tiers. These numbers haven't been updated since 2023. As you can see on the left (orange bars behind green bars) the amount of patreons don't give information about the tier distribution, since the distributions had bigger ranges while having the same amount of patreons.
This simply means tier could be all the way up now, we don't know, hence it says "estimated earnings". If the page would track the earnings, it wouldn't need to estimate numbers.