condition mean min max 0 h after light 18.158549999999998 15.8463 20.4708 2 h after light 2.019915 1.90494 2.13489 4 h after light 1.89805 1.86397 1.93213 8 h after light 5.226884999999999 5.21695 5.23682 12 h after light 11.41678 7.63936 15.1942 2 h after dark 17.2381 14.8993 19.5769 4 h after dark 24.82945 24.3686 25.2903 8 h after dark 43.41445 42.6267 44.2022 12 h after dark 30.5412 29.282 31.8004