You can read the details of the Foreign Exchange activity here and the Over the Counter (OTC) Interest Rate Derivatives are here.
Here are some highlights
Trading in foreign exchange markets averaged $5.3 trillion per day in April 2013. This is up from $4.0 trillion in April 2010 and $3.3 trillion in Apr il 2007. FX swaps were the most actively traded instruments in April 2013, at $2.2 trillion per day, followed by spot trading at $2.0 trillion.
Trading in OTC interest rate derivatives markets averaged $2.3 trillion per day in April 2013. This is up from $2.1 trillion in April 2010 and $1.7 trillion in April 2007. Interest rate swaps were the most actively traded instruments in 2013, at $1.4 trillion per day, fo llowed by forward rate agreements at $0.8 trillion.