condition	mean	min	max
4 h after light	7.121116666666666	7.061139999999999	7.180739999999999
8 h after light	7.4645399999999995	7.290489999999999	7.5549800000000005
12 h after light	7.549426666666666	7.46357	7.679869999999999
4 h after dark	7.759953333333334	7.55385	7.88523
8 h after dark	7.69838	7.60228	7.81617
12 h after dark	7.44438	7.3421	7.63495