condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.2833785 0.0 0.566757 8 h after light 0.0 0.0 0.0 12 h after light 0.3789695 0.0 0.757939 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.6162055 0.605025 0.627386 12 h after dark 0.0 0.0 0.0