condition	mean	min	max
4 h after light	19.5	19.5	19.5
8 h after light	14.25	12.2	16.3
12 h after light	6.45	2.1	10.8
4 h after dark	28.55	17.5	39.6
8 h after dark	18.15	16.5	19.8
12 h after dark	6.2	1.1	11.3