Year National Currency 2005-01-01 15660826200 2006-01-01 17367763700 2007-01-01 21752239400 2008-01-01 25200804200 2009-01-01 27972136100 2010-01-01 28222127100 2011-01-01 30162307800 2012-01-01 20610218200 2013-01-01 24445522100 2014-01-01 25325560700 2015-01-01 25975000000 2016-01-01 26579611500 2017-01-01 27475662300