condition	mean	min	max
4 h after light	7.4	7.4	7.4
8 h after light	46.65	44.5	48.8
12 h after light	11.5	3.5	19.5
4 h after dark	15.1	6.2	24.0
8 h after dark	24.5	4.5	44.5
12 h after dark	12.15	9.0	15.3