a ton of depressing chart info! credit to ampedchoz.
Spoiler:
MEGA BESTS
Nacchi
rank #40
total sales : 5,206
Pucchi Best 9 CD first week
weekly rank #66
total sales : 3354
Nakazawa Yuko Best "Legend" first week
weekly rank #182
total sales : 1020
Melon Kinenbi Best first week:
weekly rank : #122
total : 1477
Country Musume Best first week:
weekly rank : #171
total : 1073
Tanpopo/PucchiMoni Best first week:
weekly rank : #168
total : 1084
Shuffle Unit Best first week:
weekly rank : #164
total : 1102
Special Unit Best first week:
weekly rank : #132
total : 1349
Taiyo Cisco Moon, T&C Bomber Best first week:
weekly rank : #148
total : 1172
Minna no Tamago First Week:
weekly rank: #9
total sales: 12,587
Even though I don't care about the H!P kids I'm happy they were able to debut top 10.