"Availability" metric for flea prices

[someonemax]

Describe the Feature Request

When checking flea prices of items such as gun mods etc sometimes some items/mods look like a very good option ... High performance and low price on the flea ...

But it actually is rarely available on the flea
I.e. once in a while someone lists one and lists it for a low price since he has no idea how much to list it for ... And that gets cached as average price (but it's fake/false price, since 99.99% of the times the item isn't available on the market).

This affects tarkov.dev directly, but also downstream tools that use your API to fetch flea prices (e.g. db4tarkov.com)

Having an average number of available offers ("Availability") on the market next to the price would solve this.
It would be even better if you took the "Count" of each offer into account. (E.g. some item might have only 5 offers, but each seller is selling 20 of that item, so there are on average 100 of that item for sale on the market).

[Razzmatazzz]

We have a lastOfferCount field that shows the number of flea offers for the item at the time of the most recent scan. Historical price data also now includes the number of offers for each observed scan. So the information is therefore downstream tools to use.

For the Tarkov.dev website, I looked into adding an offer count line to the historical price chart, but it seems the chart library currently being used for that component doesn't easily support multi-axis charts, so I abandoned that effort. Even so, you currently can get an idea of the number of offers available for an item by observing the historical price chart as it is. If there is very little difference between the average price line and the minimum price line, that means there aren't many offers (no difference essentially means one offer or all offers are the same price). A graph that shows a flat line or very few price observations also indicates not many offers are listed for that item (example: https://tarkov.dev/item/m1911a1-hammer).

Edit: Here's another example of an item with few observed prices and where the average line and the last low price line are the same: https://tarkov.dev/item/desert-eagle-l6-pistol-slide

I'm open to finding some way to display the last offer count somewhere one the webpage, but the information is sort of already there if you know what to look for.