condition	mean	min	max
4 h after light	10.3	8.59	12.56
8 h after light	9.58111111	6.23	15.20333333
12 h after light	11.341111111	7.343333333	19.32
1.5 h after dark	5.691111111	4.57	7.14
5.5 h after dark	5.034444444666667	3.076666667	6.136666667
9.5 h after dark	7.241111111	6.78	7.62