Year Percent of GDP 2004-01-01 11.32792165328700 2005-01-01 9.81150562346646 2006-01-01 11.41484135589530 2007-01-01 10.54789944209890 2008-01-01 9.85991638444715 2009-01-01 12.58387583613580 2010-01-01 21.03898531272130 2011-01-01 23.77667438315380 2012-01-01 23.92679141675030 2013-01-01 26.42759916356080 2014-01-01 25.91541290135980 2015-01-01 26.55875100922470 2016-01-01 27.39625249241720 2017-01-01 27.95149964139230 2018-01-01 25.93765089538060 2019-01-01 24.51845958883200