condition	mean	min	max
4 h after light	10.4	10.4	10.4
8 h after light	12.2	5.2	19.2
12 h after light	9.85	7.7	12.0
4 h after dark	53.7	48.9	58.5
8 h after dark	32.2	14.7	49.7
12 h after dark	24.25	12.0	36.5