condition	mean	min	max
4 h after light	7.140443333333334	6.993410000000001	7.28722
8 h after light	7.24369	7.055789999999999	7.6043199999999995
12 h after light	7.289176666666667	7.06078	7.435689999999999
4 h after dark	7.1567	6.93924	7.3121
8 h after dark	6.873196666666667	6.5685	7.15605
12 h after dark	6.70857	6.60571	6.83971