condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.019590666666666666 0.0 0.117544 14 h after light 0.021699 0.0 0.130194 18 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0