condition	mean	min	max
0 h after light	18.40915	17.4421	19.3762
4 h after light	20.4557	17.2443	23.6671
8 h after light	13.562650000000001	10.7233	16.402
4 h after dark	16.74015	16.2823	17.198
8 h after dark	15.033850000000001	14.1168	15.9509
12 h after dark	13.852805	9.48541	18.2202