Year National Currency 2004-01-01 10908800000 2005-01-01 13782500000 2006-01-01 17359100000 2007-01-01 24767000000 2008-01-01 41531000000 2009-01-01 48673000000 2010-01-01 55313000000 2011-01-01 58480000000 2012-01-01 66859000000