condition	mean	min	max
4 h after light	7.636939999999999	6.91439	8.35949
8 h after light	6.782695	6.66262	6.90277
12 h after light	8.59846	7.92461	9.27231
4 h after dark	9.006523333333334	8.90008	9.09538
8 h after dark	9.191146666666667	8.86963	9.64666
12 h after dark	7.54982	7.16047	7.75959