condition mean min max 0 h after light 0.371582 0.0 0.743164 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.355114 0.0 0.710228 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.388234 0.0 0.776468 12 h after dark 0.0 0.0 0.0