Still, on average, about one in three girls 15 to 19 years old in those countries have been subjected to FGM, compared to nearly one in two in 2000. There, a girl's risk of marrying in childhood has decreased by over 40 per cent since 2000. Increasingly, the global burden of child marriage is shifting from Southern Asia to sub-Saharan Africa, where levels of child marriage have declined at a more modest rate.