condition	mean	min	max
4 h after light	19.4	19.4	19.4
8 h after light	44.45	36.4	52.5
12 h after light	10.05	8.3	11.8
4 h after dark	22.95	15.1	30.8
8 h after dark	11.7	3.7	19.7
12 h after dark	8.55	6.6	10.5