condition	mean	min	max
4 h after light	7.7	7.7	7.7
8 h after light	2.4	1.5	3.3
12 h after light	6.45	1.9	11.0
4 h after dark	3.9499999999999997	3.3	4.6
8 h after dark	21.3	8.9	33.7
12 h after dark	2.0	1.4	2.6