Year % of GDP 1996 1.31991004943848 1997 1.41563999652863 1998 1.73706996440887 1999 1.81623995304108 2000 1.81699001789093 2001 2.00929999351501 2002 2.03281998634338 2003 1.99679005146027 2004 2.07858991622925 2005 2.14806008338928 2006 2.1165599822998 2007 2.31985998153687 2008 2.59674000740051 2009 2.12789988517761 2010 1.92918002605438 2011 2.06955003738403 2012 1.91832995414734 2013 1.92104005813599 2014 2.082279920578 2015 2.1744499206543 2016 2.07291007041931 2017 1.89904999732971 2018 1.80957996845245 2019 1.8850599527359 2020 2.16304993629456