For the use of people who want to take a look into the recent history of manga, either as a whole or for one specific series via a text search. I put these lists together to enable myself to be rid of the way I used to hunt down manga sales, since looking up light novel sales data using those pages took maybe a tenth the time.
These aren’t my data; it’s all via the myanimelist news team, which has been consistently tracking the number since late 2008.
Also, an obligatory warning: as with LNs, it always pays to double check figures and be aware of surrounding circumstances; no sales figures truly happen in a vacuum. The most obvious examples are stuff like a series coming out in the last day of a tracking week and splitting sales that otherwise would have charted into 2 smaller, “invisible” chunks. Manga chart thresholds are high enough that a series can perform perfectly fine and not chart for years.