condition	mean	min	max
4 h after light	6.585433333333333	6.10316	7.345439999999999
8 h after light	6.774886666666667	6.22968	7.8590800000000005
12 h after light	7.581013333333334	6.9250300000000005	8.38911
4 h after dark	7.144596666666667	6.4606900000000005	8.09963
8 h after dark	7.10933	7.0007399999999995	7.25087
12 h after dark	6.03787	5.65836	6.7219