condition	mean	min	max
4 h after light	13.030426666666667	6.70888	20.3804
8 h after light	8.45834	1.8378	14.9053
12 h after light	8.74502	4.91557	13.426
4 h after dark	13.174173333333332	9.44482	16.5052
8 h after dark	12.97507	7.55891	17.5839
12 h after dark	16.3379	13.3041	21.9103