condition	mean	min	max
4 h after light	6.506595	6.27602	6.73717
8 h after light	6.674005	6.60522	6.74279
12 h after light	7.17847	7.13707	7.21987
4 h after dark	8.21992	7.7887	8.65114
8 h after dark	8.221150000000002	8.0523	8.39
12 h after dark	7.1386199999999995	6.8909	7.38634