Year % of GDP 1995 17.20188787929465 1996 13.625693931015032 1997 13.733889075367353 1998 14.490541639605164 1999 13.583312817987855 2000 11.318022207023809 2001 11.14457219812272 2002 14.626530514762468 2003 17.52860450642293 2004 20.578814995543222 2005 21.14820662601884 2006 28.15951233786262 2007 30.578272054092494 2008 24.869241915933614 2009 28.39735322338064 2010 31.41305108766965 2011 27.81394952763934 2012 31.725931290418792 2013 34.03447731901508 2014 31.090354583340403 2015 33.251200093033646 2016 34.43346496069457 2017 36.45607732896531 2018 35.84058137695439 2019 35.20722038748182 2020 44.59172171958357 2021 43.40249499188035 2022 43.4704498170032