condition	mean	min	max
4 h after light	2.9	2.9	2.9
8 h after light	13.9	10.8	17.0
12 h after light	11.5	8.3	14.7
4 h after dark	7.1	3.2	11.0
8 h after dark	4.45	2.9	6.0
12 h after dark	19.7	9.9	29.5