condition mean min max 4 h after light 9.666045 8.67179 10.6603 8 h after light 9.188234999999999 8.80581 9.57066 12 h after light 10.2606 10.2104 10.3108 4 h after dark 12.50745 12.4177 12.5972 8 h after dark 8.872074999999999 8.00403 9.74012 12 h after dark 9.81681 9.79862 9.835