condition	mean	min	max
4 h after light	1.9	1.9	1.9
8 h after light	9.2	2.4	16.0
12 h after light	3.9	3.2	4.6
4 h after dark	4.85	4.0	5.7
8 h after dark	7.8	4.0	11.6
12 h after dark	3.7	2.9	4.5