condition mean min max 4 h after light 0.0939804 0.0 0.2043 8 h after light 0.18808253333333336 0.0299406 0.322093 12 h after light 0.10589413333333333 0.0698975 0.158771 4 h after dark 0.147671 0.0 0.267837 8 h after dark 0.3243856666666667 0.259849 0.420507 12 h after dark 0.284755 0.231322 0.315083