condition	mean	min	max
4 h after light	8.0	8.0	8.0
8 h after light	15.75	6.6	24.9
12 h after light	19.55	13.8	25.3
4 h after dark	4.6000000000000005	1.8	7.4
8 h after dark	7.75	5.1	10.4
12 h after dark	13.35	6.2	20.5