condition	mean	min	max
4 h after light	8.33323	8.08606	8.535160000000001
8 h after light	8.595166666666666	8.42845	8.734589999999999
12 h after light	7.98745	7.880260000000001	8.050239999999999
4 h after dark	8.06564	7.932910000000001	8.15447
8 h after dark	7.9392700000000005	7.809660000000001	8.0147
12 h after dark	7.4005	7.1334	7.838830000000001