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The GDP increased by 105.2 % in 1997 , and real GDP growth reached 23 % in 1999 , and initial estimates suggested growth of about 15 % in 2001 , according to IMF 2001 forecast .
 IMF
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 IMF