Year % of GDP 1993 12.897511241568823 1994 16.510750307007832 1995 17.2329841156187 1996 19.922026113749723 1997 47.32819623942853 1998 31.376128924715474 1999 26.789186134379094 2000 21.414174876715116 2001 20.887825886030793 2004 38.09973911447847 2005 49.1246833807354 2006 43.27194035378242 2007 63.40028377139384 2008 33.80475662324514 2009 46.43465563500103 2010 43.56735804321728 2011 34.663453476431144 2012 34.654731810513354 2013 40.88083914587454 2014 40.809990811608515 2015 52.245909751753715 2016 30.99381765396768 2017 26.341516272427263 2018 20.525900409276947 2019 19.44051005038483 2020 21.710776936959896 2021 21.434115169008304 2022 19.41924010424227