condition	mean	min	max
4 h after light	7.69274	7.458489999999999	7.99745
8 h after light	8.241406666666666	7.7141399999999996	8.583960000000001
12 h after light	8.056423333333333	7.59588	8.3191
4 h after dark	7.845636666666667	7.32286	8.1647
8 h after dark	7.826849999999999	7.46298	8.10982
12 h after dark	7.846643333333334	7.7100100000000005	7.956869999999999