condition mean min max 4 h after light 2.727473333333333 1.32695 3.86238 8 h after light 2.7335659999999997 0.670908 4.76063 12 h after light 1.7000633333333335 1.12389 2.80241 4 h after dark 1.7529400000000002 1.10952 2.26188 8 h after dark 1.2024743333333334 0.701353 1.47145 12 h after dark 1.301689 0.854167 1.85241