condition	mean	min	max
4 h after light	3.6	3.6	3.6
8 h after light	2.55	2.5	2.6
12 h after light	7.5	5.4	9.6
4 h after dark	13.950000000000001	3.6	24.3
8 h after dark	6.45	5.4	7.5
12 h after dark	3.45	2.6	4.3