condition	mean	min	max
4 h after light	2.8	2.8	2.8
8 h after light	23.35	13.5	33.2
12 h after light	30.9	30.3	31.5
4 h after dark	2.5	1.6	3.4
8 h after dark	2.6	0.5	4.7
12 h after dark	3.35	0.3	6.4