Here Oricon Manga sales from November 19, 2012 to May 19, 2013.
Top 10 Best Selling Manga Series (first half 2013)
01 - One Piece (7.,944,680 copies)
02 - Magi (4,787,519 copies)
03 - Kuroko no Basket (4,712,773 copies)
04 - Shingeki no Kyojin (4,292,208 copies)
05 - Hunter x Hunter (3,616,288 copies)
06 - Naruto (2,860,385 copies)
07 - Assassination Classroom (2,504,200 copies)
08 - Silver Spoon (1,926,298 copies)
09 - Fairy Tail (1,853,510 copies)
10 - Terra Formars (1,721,651 copies)
http://www.oricon.co.jp/entertainment/ranking/2013/bookrank0603/index06.html
Top 50 Highest Selling Manga Volumes (first half 2013)
01 - One Piece 69 (2,946,369 copies)
02 - Naruto 63 (1,159,173 copies)
03 - Hunter x Hunter 31 (1,146,129 copies)
04 - Hunter x Hunter 32 (1,141,177 copies)
05 - Sawako 18 (1,100,503 copies)
06 - Naruto 64 (1,024,073 copies)
07 - Shingeki no Kyojin 09 (917,320 copies)
08 - Saint Onnisan 08 (884,322 copies)
09 - Shingeki no Kyojin 10 (848,025 copies)
10 - Blue Exorcist 10 (812,623 copies)
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18 - One Piece 68 (633,121 copies)
http://www.oricon.co.jp/entertainment/ranking/2013/bookrank0603/index05.html
http://www.oricon.co.jp/entertainment/ranking/2013/bookrank0603/index05_1.html
First half 2012 sales: http://forums.arlongpark.net/showthread.php?t=35411