With the establishment of the State of Israel in May 1948, large-scale Jewish immigration ensued from Europe, the Middle East, and North Africa, greatly increasing the Jewish population. As a result, the amount of native-born Jews as a percentage of the population went down from 35% in 1948 to 25% in 1951. However, as the immigration wave tapered off, the percentage of the native-born Jewish population gradually increased as more children were born, many to immigrants who arrived after independence. The percentage of the Jewish population that was native-born reached 33% in 1956, 38% in 1961, and 40% in 1965.