condition	mean	min	max
4 h after light	7.549545	6.94754	8.15155
8 h after light	7.639375	7.24929	8.02946
12 h after light	7.66144	6.96513	8.35775
4 h after dark	10.250795	9.05319	11.4484
8 h after dark	9.526135	9.08486	9.96741
12 h after dark	10.062964999999998	9.79943	10.3265