China has about 20% of the world’s entire population. To control the rapid population growth rate and to ensure the quality of life, Family Planning has been a core state policy since 1978. China is a multiracial state consisting of 56 ethnic groups. Under China’s “Law on Nine-Year Compulsory Education,” primary school is tuition-free. China’s “socialist” market economy is   the world’s second-largest economy by nominal GDP after the United States. However, according to the IMF, it is the world’s biggest economy in terms of PPP, purchasing power parity (basket of goods for daily local living).