condition mean min max 2 h after light 5.97556 5.3805 6.42121 6 h after light 6.776016666666667 6.56714 7.01637 10 h after light 7.332063333333333 7.01385 7.49658 2 h after dark 6.864240000000001 6.73983 7.10747 6 h after dark 5.28916 5.08221 5.67726 10 h after dark 4.667393333333333 4.41533 5.02025