condition	mean	min	max
4 h after light	2.9	2.9	2.9
8 h after light	17.5	8.4	26.6
12 h after light	13.85	6.5	21.2
4 h after dark	6.55	5.6	7.5
8 h after dark	25.45	11.6	39.3
12 h after dark	3.75	1.6	5.9