condition mean min max 4 h after light 0.3497255 0.323883 0.375568 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 1.29301 0.0 2.00342 12 h after dark 0.174831 0.0 0.524493