总体生育率（每位妇女生孩子的数量）仅2.14，位居世界最低行列，也远远低于不需要移民就可以维持人口规模的水平2.1。
The total fertility rate (the number of children per woman), at 1.24, is one of the lowest in the world, and well below the level – 2.1 children per woman – needed to sustain a population without immigration.