condition	mean	min	max
4 h after light	7.919045	7.2043	8.63379
8 h after light	7.197430000000001	6.7968	7.59806
12 h after light	8.091195	7.42391	8.75848
4 h after dark	10.6674	10.1399	11.1949
8 h after dark	9.32965	9.03025	9.62905
12 h after dark	8.526645	7.79208	9.26121