condition mean min max 0 h after light 0.0423109 0.0 0.0846218 2 h after light 0.03937305 0.0 0.0787461 4 h after light 0.0 0.0 0.0 8 h after light 0.04043575 0.0 0.0808715 12 h after light 0.0789485 0.0 0.157897 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0