The provinces with a national volume of 1 are Hebei, Henan, Shanxi, Guangxi and (Shaanxi). Note: English papers are scored differently.
Guizhou, Heilongjiang, Jilin, Yunnan, Gansu, Xinjiang, Inner Mongolia, Qinghai and Tibet are the provinces that account for 2% of the country.
The provinces in the whole country that have the second volume (Mathematics) are: Guizhou, Heilongjiang, Jilin, Yunnan, Gansu, Xinjiang, Inner Mongolia, Qinghai and Tibet.