condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 1.166005 0.0 2.33201 4 h after light 0.146152 0.0 0.292304 8 h after light 0.0 0.0 0.0 12 h after light 1.673385 0.0 3.34677 2 h after dark 0.118335 0.0 0.23667 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