condition	mean	min	max
4 h after light	9.21902	9.0802	9.38382
8 h after light	9.047796666666667	8.94005	9.24559
12 h after light	8.9876	8.82103	9.07669
4 h after dark	9.15894	8.99271	9.35892
8 h after dark	8.880766666666668	8.7946	8.980260000000001
12 h after dark	8.7471	8.68248	8.84998