condition	mean	min	max
4 h after light	4.4	4.4	4.4
8 h after light	4.7	2.0	7.4
12 h after light	7.35	6.2	8.5
4 h after dark	12.65	3.6	21.7
8 h after dark	13.0	8.9	17.1
12 h after dark	20.5	5.6	35.4