Series

1. One Piece,18.2 million

2. Attack on Titan,15.9 million

3. Kuroko's Basketball, 8.8 million

4. Magi, 7.2 million

5. Naruto, 5.6 million

6. Silver Spoon, 4.9 million

7. Assassination Classroom, 4.6 million

8. Hunter x Hunter, 4.2 million

9. FAIRY TAIL, 3,.8 million

10. TERRA FORMARS, 3.6 million

11. Kimi ni Todoke, 3.4 million

12. Gintama, 2.9 million

13. Toriko, 2.8 million

14. Kingdom, 2.8 million

15. Bleach, 2.8 million

Volume

1. One Piece 69, 3.1 million

2. One Piece 70, 3.0 million

3. One Piece 71, 2.9 million

4. One Piece 72, 2.4 million

5. Attack on Titan 9, 2.0 million

6. Attack on Titan 10, 1.9 million

7. Attack on Titan 11, 1.5 million

8. Attack on Titan 8, 1.3 million

9. Attack on Titan 1, 1.3 million

10. Attack on Titan 2, 1.3 million

11. Attack on Titan 7, 1.3 million

12. Attack on Titan 3, 1.3 million

13. Attack on Titan 6, 1.2 million

14. Attack on Titan 5, 1.2 million

15. Attack on Titan 4, 1.2 million

Sources

http://www.crunchyroll.com/anime-news/2013/12/01/one-piece-tops-2013-manga-sales-in-japan

In the year of Whitebeard war, One Piece sold more than 38.million.
For the ones that don't know, One Piece is the best selling manga in the history of Japan.

This is a month old so how can they know the numbers for december?

Damn it used to be One Piece way ahead with nothing coming close, but Attack on Titan is on fire and im surprised that a concept like Silver Spoon would be so popular.

About a year ago, I remember a guy telling me that One Piece wasn't that big, especially compared to Naruto.

I need to start reading Assassination Classroom again.

It always makes me happy to see Kimi ni Todoke up there with all the action stuff.

You're right. I didn't notice that! It's form November 2012 to Novmber 2013.

From the source: " which was compiled between November 19, 2012 and November 17, 2013"

Damn, Bleach fell off hard. It was ranked 2nd or 3rd a few years ago. Guess the dual disasters of the Deicide and Fullbring arcs were the final nails in the coffin.

One Piece dropped a lot... it sells ~25 million per year... 18 million is not a good number.

The Tankōbon (volumes) are released in early December and it is first impression/circulation numbers... not the sales itself.

Edit - You are right they are using November numbers... so they missed one volume for OP for example.

That starts to make sense... 18 million is too low for OP... so there are one more volume to add in the numbers... ~3 million? 21m for 2013? Still low numbers but at least close to the avg sales of OP in Japan (~25m per year).