condition mean min max 4 h after light 157.248451 147.831479 166.665423 8 h after light 154.7777015 123.554681 186.000722 12 h after light 116.024698 112.684065 119.365331 4 h after dark 108.324996 91.651169 124.998823 8 h after dark 93.67394999999999 88.788861 98.559039 12 h after dark 66.6927 66.6927 66.6927