condition	mean	min	max
4 h after light	8.36139	7.968	8.69893
8 h after light	9.184586666666666	9.0772	9.284989999999999
12 h after light	9.456233333333333	9.36375	9.587
4 h after dark	9.17843	8.92497	9.38977
8 h after dark	8.887876666666665	8.67579	9.0506
12 h after dark	8.72923	8.32192	8.977269999999999