Paraphrase the below paragraph into your own words: 
"Indeed, the rapid pace of fertility decline in some Asian countries seems already to have overtaken some of the UNPDs most recent fertility projections: The latest information from such disparate locales as Iran and Vietnam suggest that both may currently be at replacement-level fertility — or even below. Only in uncharted Afghanistan are fertility rates guessed to be stubbornly stuck at essentially premodern elevations."