condition	mean	min	max
4 h after light	19720.849443333333	12971.47	29632.93333
8 h after light	31458.283333333333	19712.33	43455.80667
12 h after light	31789.57889	23226.91	38632.57667
1.5 h after dark	47501.61666666667	32331.70667	64353.19
5.5 h after dark	43081.770000000004	26087.26333	58413.81667
9.5 h after dark	19689.14889	9626.85	37309.14