condition	mean	min	max
4 h after light	3.7	3.7	3.7
8 h after light	5.75	4.3	7.2
12 h after light	3.8	2.9	4.7
4 h after dark	6.35	3.7	9.0
8 h after dark	25.0	3.9	46.1
12 h after dark	13.05	8.9	17.2