condition mean min max 3 h after light 16.842 11.8371 21.468 6 h after light 26.3924 20.3616 29.5213 9 h after light 51.577133333333336 47.26 59.7271 12 h after light 69.55445 18.0033 92.2218 3 h after dark 65.42353333333334 56.5818 70.9787 6 h after dark 77.98256666666666 69.4305 82.8838 9 h after dark 59.06983333333333 53.4893 65.957 12 h after dark 19.198099999999997 17.519 20.8772