Ukususela kwidatha yeminyaka edlulileyo, unikezelo lonyaka lweerobhothi zemizi-mveliso e-China lusuka kwiiyunithi ezili-15,000 ngo-2012 ukuya kwiiyunithi ze-115,000 ngo-2016, kunye nesantya sokukhula ngonyaka phakathi kwe-20% kunye ne-25%, kubandakanywa iiyunithi ze-87,000 ngo-2016, ukwanda 27% unyaka nonyaka. T...
Funda ngokugqithisileyo