condition	mean	min	max
4 h after light	3.5	3.5	3.5
8 h after light	4.45	2.1	6.8
12 h after light	23.05	6.9	39.2
4 h after dark	4.0	3.7	4.3
8 h after dark	9.5	7.2	11.8
12 h after dark	5.4	4.0	6.8