condition mean min max 0 h after light 0.3708715 0.0 0.741743 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.186243 0.0 0.372486 2 h after dark 0.0 0.0 0.0 4 h after dark 0.178228 0.0 0.356456 8 h after dark 0.2085725 0.0 0.417145 12 h after dark 0.0 0.0 0.0