I don't think this is what Pmalek is looking for.
The link you shared display the total size of transactions paying less than 1 sat/vbyte, but it still doesn't give you the size of transaction made with the free rate of 0-0.1 sat/vbyte or 0.1-0.2 sat/vbyte. 

There's a same graph on mempool.space and like hoenicke's website, it only gives you the total size of transaction paying less than 1 sat/vbyte with no more details.