condition	mean	min	max
0 h after light	18.681	18.143	19.219
4 h after light	14.185749999999999	13.8654	14.5061
8 h after light	16.5843	15.9059	17.2627
4 h after dark	20.323749999999997	18.7566	21.8909
8 h after dark	17.0347	15.2603	18.8091
12 h after dark	17.52845	14.0774	20.9795