condition	mean	min	max
4 h after light	8.92407	8.653039999999999	9.21941
8 h after light	8.356936666666666	7.9483	8.89161
12 h after light	7.385373333333334	7.038860000000001	7.63227
4 h after dark	8.661299999999999	8.34366	8.9628
8 h after dark	9.078216666666666	9.03655	9.12252
12 h after dark	9.08024	8.85396	9.30129