condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0130657 0.0 0.0391971 9 h after light 0.0 0.0 0.0 12 h after light 0.020210875 0.0 0.0808435 3 h after dark 0.0 0.0 0.0 6 h after dark 0.021271766666666667 0.0 0.0638153 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0