Excerpt from the BIS:

"The 2007 survey shows an unprecedented rise in activity in traditional foreign exchange markets compared to 2004. Average daily turnover rose to $3.2 trillion in April 2007, an increase of 71% at current exchange rates and 65% at constant exchange rates...Against the background of low levels of financial market volatility and risk aversion, market participants point to a significant expansion in the activity of investor groups including .