condition	mean	min	max
4 h after light	6.26855	5.9406	6.55549
8 h after light	6.084243333333333	5.8716099999999996	6.4111199999999995
12 h after light	6.10942	5.90758	6.49731
4 h after dark	6.683243333333333	6.12485	7.18411
8 h after dark	6.611093333333333	6.12784	6.911339999999999
12 h after dark	6.804823333333334	6.4474800000000005	7.02463