Year % of GDP 2000 5.683891290791281 2001 5.9621834348199325 2002 6.203905488640505 2003 6.3664626672791895 2004 6.41726529494187 2005 6.472192414419411 2006 6.522496917077412 2007 6.555648491811502 2008 6.79810757502144 2009 7.430949435886188 2010 7.413322555168714 2011 7.547389890962423 2012 7.58181589022816 2013 7.565929500094263 2014 7.730327904776533 2015 7.892707872243544 2016 7.977844730591043 2017 7.939806639699692 2018 7.934846073509248 2019 8.056345291161916 2020 9.462215744582316 2021 8.999062035440074