Here are the weekly manga & light novels rankings for September 12th - 18th.

ranks/ this week's sales by copies/ cumulative sales/ titles
Manga
*1, 714,858 *,714,858 Kimi ni Todoke vol.14
*2, 250,441 *,250,441 Detective Conan vol.73
*3, 171,785 *,171,785 Chihayafuru vol.14
*4, 101,172 *,101,172 Kuragehime vol.8
*5, *90,512 *,*90,512 Hajime no Ippo vol.97
*6, *80,879 *,*80,879 Air Gear vol.33
*7, *75,401 *,*75,401 Shura no Mon: Dai Ni Mon vol.3
*8, *72,785 *,*72,785 Kami nomi zo Shiru Sekai vol.14
*9, *63,301 *,*63,301 GTO: Shonan 14 Days vol.7
10, *58,840 *,660,677 Ao no Exorcist vol.7

11, *53,493 *,*53,403 Zettai Karen Children vol.27
12, *48,005 *,*48,005 Area no Kishi vol.27
13, *47,513 *,*47,513 Yamato Nadeshiko Shichi Henge vol.29
14, *43,388 *,363,324 Gintama vol.41
15, *42,880 *,*42,880 Good Morning Kiss vol.8
16, *42,237 *,*42,237 Mashiro no Oto vol.4
17, *40,213 *,315,061 Toriko vol.16
18, *35,195 *,*35,195 Kami nomi zo Shiru Sekai vol.14 with OVA
19, *34,345 *,280,883 New Prince of Tennis vol.6
20, *33,784 *,*33,784 Baby Steps vol.18

21, *33,600 *,*33,600 Usogui vol.22
22, *32,872 *,*32,872 Yume no Shizuku Ougon (kin) no Kago vol.1
23, *32,825 *,*32,825 Kimi to Boku. vol.10
24, *31,982 *,284,929 Nurarihyon no Mago vol.18
25, *29,579 *,*29,579 AKB49 - Renai Kinshi Jourei vol.4
26, *29,456 *,*38,512 Mahou Senki Lyrical Nanoha Force vol.4
27, *28,322 *,*28,564 Mahou Shoujo Madoka☆Magica: Anthology vol.1
28, *26,942 2,913,100 One Piece vol.63
29, *26,877 *,*26,877 81 Diver vol.21
30, *26,080 *,205,744 SKET Dance vol.20

Light Novels
*1, 75,885 155,820 Ore no Imouto ga Konnani Kawaii Wake ga Nai vol.9
*2, 23,135 *24,018 One Piece Character Lunch Box Book
*3, 17,611 *57,735 Shoujo Fujubun
*4, 16,687 *36,309 Heavy Object vol.
*5, 16,513 *34,586 Kamisama no Memochou vol.8
*6, 14,740 *31,460 Sakurasou no Pet na Kanojo vol.5.5
*7, 11,928 *11,928 Ore no Kanojo to Osananajimi ga Shuraba Sugiru vol.3 Special Edition
*8, 11,127 *25,970 Kyoukai Senjou no Horizon vol.4 Part 1
*9, 11,069 *11,069 Highschool DxD vol.10
10, 10,102 150,923 Toshokan Sensou vol.6 Small Size Edition
11, *9,882 *23,483 Strike The Blood vol.2
12, *9,853 **9,853 Ore no Kanojo to Osananajimi ga Shuraba Sugiru vol.3 Standard Edition

Source: Oricon