condition	mean	min	max
4 h after light	4.222965	3.90302	4.54291
8 h after light	3.57728	3.18692	3.96764
12 h after light	5.258665000000001	5.09014	5.42719
4 h after dark	6.53168	5.49272	7.57064
8 h after dark	6.643555	6.14701	7.1401
12 h after dark	5.833425	5.81532	5.85153