190 45% 棉粉 4 HOURS additional Maths course each week 20% 77777 >4 HOURS additional Maths,English and Chinese course each week of Shanghainese Children 12.8 HOURS of the children from prlmary and secondary 80% schools are facing the problem of children spend studying SLEEP DEPRIVATION each day in Shanghai 中国概论 Source:http://www.moe.edu.cn/publicfiles/business/htmlfiles/moe/s73 05/201303/149533.html(May,2011) Source:http://www.moe.edu.cn/publicfiles/business/htmlfiles/moe/s73 05/201303/149533.html(May,2011)