Ho ea ka lipalo-palo, Chaena e hlahisitse lithane tse ka bang limilione tse 5.52 tsa liphaephe tsa tšepe tse cheselitsoeng ka Phato, tse holang ka 4.2% ha li bapisoa le khoeling eona eo selemong se fetileng.

Likhoeling tse robeli tsa pele tsa selemo sena, tlhahiso ea lipeipi tsa tšepe tse cheselitsoeng China e fihlile ho lithane tse ka bang limilione tse 37.93, e leng keketseho ea selemo le selemo ea 0.9%.