condition mean min max 0 h after light 2.209535 2.02798 2.39109 2 h after light 1.436135 1.35439 1.51788 4 h after light 1.065505 0.75729 1.37372 8 h after light 1.940795 1.79517 2.08642 12 h after light 4.73754 4.07362 5.40146 2 h after dark 5.47746 5.18852 5.7664 4 h after dark 4.4948049999999995 4.26957 4.72004 8 h after dark 3.7242499999999996 3.25858 4.18992 12 h after dark 1.6673499999999999 1.64934 1.68536