condition	mean	min	max
4 h after light	2.7	2.7	2.7
8 h after light	16.0	14.6	17.4
12 h after light	2.45	1.6	3.3
4 h after dark	8.7	5.7	11.7
8 h after dark	13.4	12.4	14.4
12 h after dark	2.35	1.7	3.0