condition mean min max 4 h after light 217.581874 211.239163 223.924585 8 h after light 205.06061499999998 172.603317 237.517913 12 h after light 215.0599585 214.539749 215.580168 4 h after dark 200.88129800000002 199.410629 202.351967 8 h after dark 258.823988 249.951517 267.696459 12 h after dark 154.837963 154.837963 154.837963