91931
Governments vary in their issuance of large banknotes ; in August 2009 , the number of Fr. 1,000 notes in circulation was over three times the population of Switzerland .
 Switzerland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Switzerland