People's China growth slow dowm

To 2012 or so Averaging near 9 percent since Deng early 90's reforms Since then 6 plus Nearly I one third slow down Yes exports can no longer vent additional output at earlier rates So development must Feed domestic markets Clearly far far smaller And far far more diverse then export markets But where's the sector demand engineering To realize sales of full tilt output Changing production patterns on the run can't be so slowing can they Conjecture Non economic limits Perhaps even pure superstition guided macro managers Motivate this slow down ?