condition	mean	min	max
4 h after light	4.5	4.5	4.5
8 h after light	12.9	2.2	23.6
12 h after light	10.95	6.2	15.7
4 h after dark	13.75	8.5	19.0
8 h after dark	28.85	16.7	41.0
12 h after dark	6.15	5.6	6.7