condition	mean	min	max
4 h after light	16.88855	15.9336	17.8435
8 h after light	6.827965	6.39874	7.25719
12 h after light	5.62552	4.27541	6.97563
4 h after dark	7.606646666666666	5.26277	9.40998
8 h after dark	14.2589	11.2779	15.9901
12 h after dark	15.190999999999999	12.5569	17.1973