condition mean min max 3 h after light 1.268882 0.764036 1.97806 6 h after light 0.6911663333333333 0.200388 0.949132 9 h after light 0.5526886666666666 0.315787 0.716718 12 h after light 0.597915 0.209118 0.976527 3 h after dark 0.303991 0.214817 0.350899 6 h after dark 1.220284 0.739697 1.92559 9 h after dark 1.17559 1.02115 1.26725 12 h after dark 1.64205 1.25598 1.99423