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The nation 's holdings of foreign currencies increased $ 5.67 billion in September to $ 39.08 billion , while its gold reserves were virtually unchanged at $ 11.07 billion .
 $ 5.67 billion, September, $ 39.08 billion, $ 11.07 billion
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:
 $ 5.67 billion, September, $ 39.08 billion, $ 11.07 billion