condition	mean	min	max
4 h after light	21.0	21.0	21.0
8 h after light	11.6	5.7	17.5
12 h after light	12.25	10.2	14.3
4 h after dark	53.15	38.2	68.1
8 h after dark	40.95	12.5	69.4
12 h after dark	37.65	8.1	67.2