condition mean min max 3 h after light 1.01668 0.56772 1.44532 6 h after light 2.00281 1.33328 3.08278 9 h after light 1.8014166666666667 1.12585 2.92118 12 h after light 1.48817425 0.907517 2.04254 3 h after dark 18.875766666666667 11.6923 26.2283 6 h after dark 3.3643733333333334 2.52523 4.4613 9 h after dark 1.59932 1.06481 2.01528 12 h after dark 1.17998 1.15788 1.20208