Temporal Blu-ray + DVD Rankings for Summer 2012 (the first volumes)

*1, 21,176 Kyoukaisenjou no Horizon II
*2, *9,196 Dog Days'
*3, *8,760 Tari Tari
*4, *7,728 Yuru Yuri ♪♪
*5, *6,422 Muv-Luv Alternative: Total Eclipse
*6, *4,876 Jinrui wa Suitai Shimashita
*7, *4,852 Oda Nobuna no Yabou
*8, *4,221 Joshiraku
*9, *3,719 Hakuouki Reimeiroku
10, *2,228 Arcana Famiglia (without Blu-ray)
11, *1,900 Moyashimon Returns
12, *1,888 Rinne no Lagrange Season 2
13, *1,370 Binbougami ga!
14, *1,338 Chouyaku Hyakuninisshu: Uta Koi.
15, *1,282 Upotte!!
16, *1,208 Campione!: Matsurowanu Kamigami to Kamigoroshi no Maou (without Blu-ray)
17, *1,007 Koi to Senkyo to Chocolate (without Blu-ray)
18, **,747 Kono Naka ni Hitori, Imouto ga Iru! (without Blu-ray)
19, **,669 Hagure Yuusha no Estetica (without Blu-ray)

Source: myanimelist