condition mean min max 3 h after light 9.238173333333334 8.44022 9.72064 6 h after light 7.3464 2.97576 9.87543 9 h after light 10.058119999999999 8.3768 12.7854 12 h after light 14.76415 9.1759 22.0232 3 h after dark 20.308600000000002 18.0466 22.3529 6 h after dark 19.480133333333335 15.5805 27.0395 9 h after dark 16.529166666666665 13.2761 19.8412 12 h after dark 19.354 16.4203 22.2877