condition mean min max 3 h after light 15.505733333333334 13.359 18.3672 6 h after light 10.779836666666666 7.88711 12.6608 9 h after light 11.31153 9.15639 13.6886 12 h after light 17.274225 13.6829 21.3834 3 h after dark 23.4153 21.3613 26.6134 6 h after dark 24.660133333333334 22.4351 27.0701 9 h after dark 16.986 14.3869 21.5258 12 h after dark 18.17175 17.0478 19.2957