Year % of GDP 2000 4.920895393872516 2001 4.9449450031978195 2002 5.202391279491986 2003 5.392248704637143 2004 5.383599677431427 2005 5.3644752743882655 2006 5.191691775172285 2007 5.201526420606335 2008 5.321635547648925 2009 5.817152940242405 2010 5.627883329567669 2011 5.4681833787600835 2012 5.484727285008119 2013 5.654422198669614 2014 5.773348748040282 2015 5.978995142081411 2016 6.078559009245525 2017 6.041691379970598 2018 6.00447250691342 2019 6.11205688679047 2020 7.11778552097903 2021 7.167672570899202