condition	mean	min	max
4 h after light	17.750152	16.533243	18.967061
8 h after light	15.083278	14.760988	15.405568
12 h after light	16.283621	15.925235	16.642007
4 h after dark	14.917194000000002	13.68368	16.150708
8 h after dark	14.3962825	12.50345	16.289115
12 h after dark	16.96448	16.96448	16.96448