condition mean min max 0 h after light 6.098459999999999 5.85523 6.34169 2 h after light 3.8342199999999997 3.51246 4.15598 4 h after light 5.53388 5.43934 5.62842 8 h after light 6.8550249999999995 6.22961 7.48044 12 h after light 13.858 13.5535 14.1625 2 h after dark 12.175149999999999 11.1809 13.1694 4 h after dark 11.48315 11.2776 11.6887 8 h after dark 10.1467 9.9544 10.339 12 h after dark 7.200715000000001 6.297 8.10443