condition	mean	min	max
4 h after light	9.545943333333334	9.325339999999999	9.745410000000001
8 h after light	9.553936666666667	9.4637	9.64115
12 h after light	9.43876	9.39128	9.503630000000001
4 h after dark	9.73872	9.690380000000001	9.79588
8 h after dark	9.820123333333333	9.61717	9.93656
12 h after dark	9.92563	9.69875	10.05132