condition	mean	min	max
4 h after light	7.053123333333334	6.2341	7.63656
8 h after light	7.04851	6.35187	7.67435
12 h after light	7.040783333333334	6.11448	7.73331
4 h after dark	7.1531199999999995	6.655239999999999	7.6938
8 h after dark	7.27304	6.6322399999999995	7.99719
12 h after dark	7.33486	6.646319999999999	7.79628