Ensuring sustainable population growth has entered the list of challenges for a large number of countries. In today’s world, many developed economies, primarily in the West, are in the list of countries whose populations are shrinking at a rapid pace. According to the United Nations standard for sustainable growth, the total fertility rate (TFR), the average number of children that would be born by a woman over her life-time, that ensures a broadly stable population is around 2.1 births per woman.