condition	mean	min	max
4 h after light	17.631149999999998	15.7555	19.5068
8 h after light	13.07415	11.1842	14.9641
12 h after light	11.996649999999999	11.1115	12.8818
4 h after dark	15.404333333333334	14.3726	16.8659
8 h after dark	18.231933333333334	17.2582	19.6737
12 h after dark	18.4749	16.7438	21.5395