condition	mean	min	max
4 h after light	5.63924	4.70834	6.57014
8 h after light	6.24289	5.22454	7.26124
12 h after light	7.14473	7.10317	7.18629
4 h after dark	12.1782	10.7818	13.5746
8 h after dark	13.2011	12.6032	13.799
12 h after dark	10.450534999999999	9.79107	11.11