condition	mean	min	max
4 h after light	1.7	1.7	1.7
8 h after light	7.3	2.4	12.2
12 h after light	3.5	3.4	3.6
4 h after dark	2.85	1.8	3.9
8 h after dark	2.75	2.2	3.3
12 h after dark	3.3	2.3	4.3