ngalo kunjalo, kusebenta kahle kweti setjentiswa letilayisha imitfwalo lemikhulu kutfutfuke kwaya ku80% futsi kuyachubeka kuya lokungenani ku95% kuze kutsi kuhlangabetane netimiso temave ngemave.

kananjalo, ukwazeka kokuxho mekeka kwizixhobo zokuphatha umthwalo kuphucuke kwaya kutsho kwiipesenti ezingama80 kwaye kuleqa ubuncinane bee pesenti ezingama95 ukuze ku fikelele kwimilinganiselo yehla bathi.
