condition mean min max 0 h after light 13.50045 13.2779 13.723 4 h after light 13.07785 11.9124 14.2433 8 h after light 9.537945 8.68579 10.3901 4 h after dark 11.8402 10.3595 13.3209 8 h after dark 12.5261 11.8305 13.2217 12 h after dark 14.0117 13.5102 14.5132