condition	mean	min	max
4 h after light	4.5	4.5	4.5
8 h after light	15.549999999999999	7.2	23.9
12 h after light	2.85	2.1	3.6
4 h after dark	6.5	6.2	6.8
8 h after dark	4.8	3.4	6.2
12 h after dark	4.550000000000001	3.2	5.9