condition mean min max 0 h after light 0.43616699999999997 0.406702 0.465632 4 h after light 0.901311 0.828799 0.973823 8 h after light 2.423685 2.12681 2.72056 4 h after dark 1.59999 1.14575 2.05423 8 h after dark 1.6935850000000001 1.32719 2.05998 12 h after dark 0.770663 0.406156 1.13517