condition	mean	min	max
4 h after light	7.856310000000001	6.25144	9.46118
8 h after light	18.70195	17.3569	20.047
12 h after light	20.3198	19.3648	21.2748
4 h after dark	17.970866666666666	17.1132	18.6664
8 h after dark	14.8872	13.8187	16.566
12 h after dark	10.739426666666667	9.22048	12.0257