condition	mean	min	max
4 h after light	8.70947	8.03484	9.3841
8 h after light	7.36323	7.06215	7.66431
12 h after light	5.726955	5.46317	5.99074
4 h after dark	8.14252	7.9852	8.29984
8 h after dark	7.918485	7.83921	7.99776
12 h after dark	7.178245	7.12318	7.23331