1970 आरो 1990नि गेजेराव बा बोसोर सिंनि थैनायनि बिबाङा जिबोसोरफ्रोमबो 20% हायदों;1990 आरो 2000नि गेजेराव 12%ल’ हायदों।
Between 1970 and 1990, the under-five mortality rate dropped by 20% every decade; between 1990 and 2000 it dropped by only 12%.