condition	mean	min	max
4 h after light	7.961488	7.867094	8.055882
8 h after light	7.6702069999999996	7.463436	7.876978
12 h after light	8.193801	7.763335	8.624267
4 h after dark	7.7207165	7.400932	8.040501
8 h after dark	7.695159	7.583471	7.806847
12 h after dark	8.739231	8.739231	8.739231