condition	mean	min	max
4 h after light	3.6	3.6	3.6
8 h after light	28.6	26.2	31.0
12 h after light	13.0	4.3	21.7
4 h after dark	9.95	6.6	13.3
8 h after dark	16.7	10.5	22.9
12 h after dark	15.5	3.1	27.9