condition	mean	min	max
4 h after light	15.828700000000001	14.5145	17.1429
8 h after light	7.43438	7.20168	7.66708
12 h after light	2.573165	2.54569	2.60064
4 h after dark	4.2838666666666665	3.7386	4.82365
8 h after dark	7.806543333333333	6.6268	9.09231
12 h after dark	13.6313	13.2461	14.0935