condition mean min max 4 h after light 13.1034835 12.381804 13.825163 8 h after light 11.262219 11.016573 11.507865 12 h after light 11.7123825 11.28767 12.137095 4 h after dark 12.227562500000001 12.137095 12.31803 8 h after dark 12.2485355 11.350895 13.146176 12 h after dark 12.502313 12.502313 12.502313