condition mean min max 4 h after light 1.1434583333333335 0.0 2.74793 8 h after light 1.024956 0.514062 1.58807 12 h after light 1.6585699999999999 1.11479 2.41063 4 h after dark 2.132 1.2991 3.24206 8 h after dark 1.5528833333333334 1.31303 1.99845 12 h after dark 0.887868 0.765616 0.964331