condition	mean	min	max
4 h after light	8.81299	4.49877	14.3781
8 h after light	9.51432	2.62454	16.6404
12 h after light	11.069040000000001	7.61432	14.2077
4 h after dark	14.833599999999999	11.6368	18.176
8 h after dark	11.98893	7.75769	14.8791
12 h after dark	8.679256666666667	8.47401	9.00545