190 SHANGHAI POPULATIONS 13 million 151 schools officlally registered public and private for migrant citizens children living in Shanghal 11 million 520.000 migrant workers who migrant children of school age can't access the same social services primary/middle school source:http://www.telegraph.co.uk/news/worldnews/2sia/china/104946/8/PiSA education-tests Why Shangha pupils are so-special.html 中国概论