condition	mean	min	max
4 h after light	2.0	2.0	2.0
8 h after light	16.4	4.0	28.8
12 h after light	4.6	2.8	6.4
4 h after dark	10.85	3.5	18.2
8 h after dark	12.85	4.5	21.2
12 h after dark	4.6	3.2	6.0