I want to know the answer to the following question:
The Warsaw Chopin Society holds the Grand prix du disque de F. Chopin how often?
All the background I'm provided with is that "On the occasion of the composer's bicentenary, the critics of The New York Times recommended performances by the following contemporary pianists (among many others): Martha Argerich, Vladimir Ashkenazy, Emanuel Ax, Evgeny Kissin, Murray Perahia, Maurizio Pollini and Krystian Zimerman.". Is that enough to answer the question?
Answer: no