condition	mean	min	max
4 h after light	4.0086949999999995	3.82256	4.19483
8 h after light	4.258545	3.91885	4.59824
12 h after light	3.8239799999999997	3.53949	4.10847
4 h after dark	4.658085	4.28136	5.03481
8 h after dark	4.1844	3.97196	4.39684
12 h after dark	4.27921	3.94512	4.6133