condition	mean	min	max
4 h after light	2.7	2.7	2.7
8 h after light	12.85	6.5	19.2
12 h after light	4.45	1.4	7.5
4 h after dark	26.3	24.8	27.8
8 h after dark	19.55	5.9	33.2
12 h after dark	15.55	4.4	26.7