condition mean min max 0 h after light 0.187249 0.167295 0.207203 2 h after light 0.495225 0.467036 0.523414 4 h after light 1.6706699999999999 1.15794 2.1834 8 h after light 19.00545 17.3863 20.6246 12 h after light 9.15858 8.32421 9.99295 2 h after dark 3.575765 2.72516 4.42637 4 h after dark 2.46176 2.34 2.58352 8 h after dark 0.8854394999999999 0.815695 0.955184 12 h after dark 0.2711825 0.265892 0.276473