condition mean min max 4 h after light 10.16741 10.10089 10.25057 8 h after light 9.532259999999999 9.408719999999999 9.63905 12 h after light 9.530916666666666 9.49371 9.574819999999999 4 h after dark 9.857426666666667 9.795580000000001 9.91183 8 h after dark 10.155256666666668 10.083860000000001 10.214260000000001 12 h after dark 10.375303333333333 10.367510000000001 10.38815