condition	mean	min	max
4 h after light	6.80993	4.45754	9.16232
8 h after light	1.53406	1.00333	2.06479
12 h after light	3.074345	1.36153	4.78716
4 h after dark	4.973345	2.86742	7.07927
8 h after dark	7.677215	6.87086	8.48357
12 h after dark	7.35907	4.42784	10.2903