condition	mean	min	max
4 h after light	2.1	2.1	2.1
8 h after light	3.45	2.4	4.5
12 h after light	4.7	4.7	4.7
4 h after dark	5.2	3.9	6.5
8 h after dark	7.55	5.1	10.0
12 h after dark	4.0	2.8	5.2