condition mean min max 3 h after light 1.92454 1.47875 2.37182 6 h after light 1.7669733333333333 1.23624 2.44382 9 h after light 3.3947533333333335 3.25458 3.61798 12 h after light 4.575735 3.82225 5.46626 3 h after dark 7.04375 6.18048 7.52387 6 h after dark 6.827976666666666 6.2576 7.66484 9 h after dark 4.43792 3.4953 5.56578 12 h after dark 3.643885 3.40591 3.88186