condition	mean	min	max
4 h after light	4.3	4.3	4.3
8 h after light	8.85	4.1	13.6
12 h after light	7.05	5.9	8.2
4 h after dark	17.0	3.8	30.2
8 h after dark	16.9	6.0	27.8
12 h after dark	33.3	26.4	40.2