condition	mean	min	max
4 h after light	6.75054	6.66953	6.860339999999999
8 h after light	6.4929733333333335	6.39478	6.60761
12 h after light	6.86371	6.76939	6.97947
4 h after dark	6.90252	6.87655	6.91605
8 h after dark	6.952823333333333	6.85797	7.086469999999999
12 h after dark	7.224826666666667	7.19543	7.25977