condition	mean	min	max
4 h after light	7.072836666666666	7.02181	7.09995
8 h after light	6.811006666666667	6.705769999999999	6.872260000000001
12 h after light	6.865183333333333	6.811439999999999	6.910830000000001
4 h after dark	6.85356	6.61764	7.148689999999999
8 h after dark	6.799306666666667	6.71495	6.874160000000001
12 h after dark	7.0593	6.850960000000001	7.29321