condition mean min max 3 h after light 2.293946666666667 1.54946 2.74679 6 h after light 1.5045866666666667 1.06539 1.90343 9 h after light 2.2287133333333333 1.60211 2.66293 12 h after light 4.691185 3.0088 5.73952 3 h after dark 7.7765699999999995 7.17829 8.64073 6 h after dark 8.22157 7.88631 8.40049 9 h after dark 4.22625 3.62571 5.30821 12 h after dark 2.07921 1.81246 2.34596