condition	mean	min	max
4 h after light	7.2	7.2	7.2
8 h after light	2.8	2.0	3.6
12 h after light	11.75	2.8	20.7
4 h after dark	1.05	1.0	1.1
8 h after dark	17.5	10.1	24.9
12 h after dark	11.15	1.3	21.0