I actually rated each individual story based on content (not style as I love Yoshimoto's style and narration) and found the average which is what I gave for my review (the average was actually 3.583 but I rounded)
Newlywed: 4
Lizard: 2.5
Helix: 3.5
Dreaming of Kimchee: 4
Blood and Water: 4
A Strange Tale from Down by the River: 3.5