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Before the scandal broke , he was getting more than 30 % support in public opinion polls , but a December 20 poll by the China Times shows Soong with only 23 % .
 30 %, December 20, the China Times, Soong, 23 %
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 30 %, December 20, the China Times, Soong, 23 %