condition	mean	min	max
4 h after light	7.426733	7.262	7.591466
8 h after light	7.691235	7.591466	7.791004
12 h after light	8.151752	7.502826	8.800678
4 h after dark	7.718226	7.261105	8.175347
8 h after dark	7.0714675	6.551469	7.591466
12 h after dark	7.920182	7.920182	7.920182