condition mean min max 4 h after light 0.0116286 0.0 0.0232572 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0179069 0.0 0.0537207 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0