condition	mean	min	max
4 h after light	15.7890555	14.586152	16.991959
8 h after light	19.268742	16.681107	21.856377
12 h after light	15.491478	15.300158	15.682798
4 h after dark	16.355914	16.355914	16.355914
8 h after dark	16.9932565	16.411676	17.574837
12 h after dark	15.568964	15.568964	15.568964