condition	mean	min	max
4 h after light	17937.118333333332	14990.455	19799.98667
8 h after light	14209.907223333334	10234.795	20441.07667
12 h after light	8202.100001333332	4454.686667	14264.93667
1.5 h after dark	7314.68	5190.646667	10082.67
5.5 h after dark	12469.595556666667	11222.05333	14027.07667
9.5 h after dark	18406.05889	16818.44667	19787.89333