condition	mean	min	max
4 h after light	7.090533333333334	6.78702	7.265810000000001
8 h after light	6.09958	6.05615	6.14687
12 h after light	6.00529	5.92668	6.0740099999999995
4 h after dark	6.202916666666667	6.10752	6.26286
8 h after dark	6.951163333333334	6.72089	7.28724
12 h after dark	7.564786666666667	7.458880000000001	7.668260000000001