condition mean min max 0 h after light 2.63635 2.38185 2.89085 4 h after light 2.9153149999999997 2.89031 2.94032 8 h after light 2.4616350000000002 2.34021 2.58306 4 h after dark 2.846355 2.78914 2.90357 8 h after dark 2.830905 2.72953 2.93228 12 h after dark 3.03142 2.99804 3.0648