Year Percent of GDP 2004-01-01 94.1047429354187 2005-01-01 94.7930218719616 2006-01-01 93.1130476904128 2007-01-01 93.7727682303329 2008-01-01 96.5030150432673 2009-01-01 96.2539072499599 2010-01-01 97.4913339906506 2011-01-01 96.6398213042919 2012-01-01 98.5664079560489 2013-01-01 98.1771436743647 2014-01-01 101.4014486051040 2015-01-01 106.8568099673760 2016-01-01 109.8959006281090 2017-01-01 113.5938226427210 2018-01-01 114.6693603344850 2019-01-01 114.6693603344850