condition	mean	min	max
4 h after light	7.00261	6.883939999999999	7.216819999999999
8 h after light	6.938093333333334	6.867000000000001	7.0671100000000004
12 h after light	6.8575333333333335	6.771439999999999	6.972230000000001
4 h after dark	6.942983333333333	6.7535	7.194939999999999
8 h after dark	6.83136	6.63863	7.015569999999999
12 h after dark	6.836246666666667	6.65758	6.9736899999999995