condition mean min max 4 h after light 3.016705 2.12454 3.90887 8 h after light 2.59791 2.36757 2.82825 12 h after light 3.648625 3.53129 3.76596 4 h after dark 5.470953333333333 5.16921 5.67466 8 h after dark 5.374376666666667 4.86241 5.74887 12 h after dark 3.8622433333333337 3.41379 4.6866