Year % of GDP 2000 4.39554119 2001 4.82522202 2002 4.89645052 2003 5.19709635 2004 4.86315727 2005 5.07408142 2006 4.66087532 2007 4.6968894 2008 4.60677242 2009 5.17444515 2010 5.20230532 2011 5.17306805 2012 5.2539444 2013 5.57465124 2014 5.89613628 2015 6.55064964 2016 6.83333063 2017 6.4901948 2018 6.60399437 2019 6.88792992 2020 8.0225811 2021 8.15972805