condition	mean	min	max
4 h after light	4.0	4.0	4.0
8 h after light	2.45	2.2	2.7
12 h after light	3.1999999999999997	2.3	4.1
4 h after dark	9.0	6.3	11.7
8 h after dark	3.5	2.8	4.2
12 h after dark	5.0	4.0	6.0