condition	mean	min	max
4 h after light	9.95788	4.61334	12.9197
8 h after light	7.34057	2.42531	11.53
12 h after light	8.84849	5.56437	13.3999
4 h after dark	12.64792	8.81766	15.3781
8 h after dark	13.945733333333333	10.269	18.0444
12 h after dark	17.762833333333333	13.9712	21.9271