condition mean min max 3 h after light 8.84182 3.89458 16.916 7 h after light 8.5474275 5.09458 15.4083 11 h after light 7.4851325 4.1326 12.1131 2 h after dark 8.0308575 4.40671 16.6132 6 h after dark 8.039409166666667 2.80118 13.5818 10 h after dark 7.408123333333333 2.8236 14.3003