There are 200,000 students graduating from high school this year in Shanghai, and 70,000 graduating from elementary school. As a result of China's long-running one-child policy, the age demographics of Shanghai have taken the form of an inverted pyramid-the younger the age bracket, the fewer the people.
據統計，今年上海高中畢業生二十萬人，小學畢業生七萬人，一胎化政策實施多年結果，上海市人口結構呈現倒金字塔，年齡越小的人口越少。