condition	mean	min	max
4 h after light	6.17528	5.00002	7.35054
8 h after light	7.98588	7.7503	8.22146
12 h after light	9.774905	8.52531	11.0245
4 h after dark	11.988800000000001	11.7627	12.2149
8 h after dark	9.933385000000001	9.75787	10.1089
12 h after dark	8.60383	7.89043	9.31723