condition	mean	min	max
4 h after light	15.8066	14.7698	16.8434
8 h after light	13.4643	13.2027	13.7259
12 h after light	12.5455	11.8535	13.2375
4 h after dark	17.5028	16.4654	19.1809
8 h after dark	16.491766666666667	14.5465	17.5467
12 h after dark	15.796366666666666	13.9604	17.1902