Oricon only tracks physical copies sold in Japan. "Oricon Years" are from November to November.
All data rights belongs to ORICON.I have only compiled the indivation that can be found on forums and other sites.
Big thank you to all the people that have made this possible through the years sharing the data online in forums and collecting it. I've just put it together in one place
Specially to Rouk and RandoManga
Go to Weekly, Monhtly and Yearly TOPSOricon Tops
Please read before
Please use "romaji" titles when searching for a series
Example: type "Shingeki no Kyojin" instead of Attack on Titan
When looking for a whole series just type the title ex:"One Piece"
When looking for a specific series volume please type #number ex:"One Piece #67"