condition	mean	min	max
4 h after light	15.738903	13.720212	17.757594
8 h after light	12.2760995	11.133198	13.419001
12 h after light	12.665432500000001	10.559081	14.771784
4 h after dark	14.1135695	12.611503	15.615636
8 h after dark	10.689630000000001	9.237812	12.141448
12 h after dark	17.558463	17.558463	17.558463