condition mean min max 2 h after light 0.299692 0.0 1.02752 6 h after light 0.3930011666666667 0.0 0.796089 10 h after light 0.532664 0.0 1.35872 14 h after light 0.5489595 0.0 1.35827 18 h after light 0.18768883333333333 0.0 0.637275 2 h after dark 0.2995345 0.0 1.09734