condition	mean	min	max
4 h after light	5.8026	4.51792	7.08728
8 h after light	5.837175	5.81357	5.86078
12 h after light	9.42414	9.23537	9.61291
4 h after dark	14.6762	14.2444	15.0071
8 h after dark	14.791333333333332	13.6632	16.5631
12 h after dark	13.818066666666667	12.6363	15.6607