Sorry I have only just joined RG. It is not quite true that the IMF only publishes a total reserve figure. It does publish a currency breakdown for total reserves but not for individual countries. Unfortunately the reserve composition of only 55.8% of the total reserve figure of $10.78 trillion is identified. This is found in the so-called COFER database. See . http://www.imf.org/external/np/sta/cofer/eng/index.htm