condition mean min max 3 h after light 0.02040286666666667 0.0 0.0612086 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.09912033333333332 0.0 0.182714 12 h after dark 0.0 0.0 0.0