condition	mean	min	max
4 h after light	12.023620000000001	9.23924	14.808
8 h after light	7.928755000000001	6.68536	9.17215
12 h after light	6.49805	4.67609	8.32001
4 h after dark	10.60241	9.74463	11.9117
8 h after dark	9.67253	8.45967	11.5783
12 h after dark	13.8093	12.8952	14.9963