condition	mean	min	max
4 h after light	9.58738	9.45412	9.71535
8 h after light	9.312043333333333	9.2592	9.33886
12 h after light	9.348406666666667	9.150360000000001	9.48033
4 h after dark	9.621216666666665	9.532639999999999	9.70387
8 h after dark	9.561300000000001	9.377130000000001	9.661710000000001
12 h after dark	9.599613333333334	9.50488	9.695730000000001