Year % of GDP 2000 24.641798721493632 2001 22.639356245892362 2002 19.390322905788587 2003 30.693083300671958 2004 36.86709834194428 2005 41.03197556894511 2006 49.45809280174701 2007 66.80568323829004 2008 29.62493854416288 2009 61.952587108538765 2010 61.04475464875925 2011 43.15290785761527 2012 48.22321724291064 2013 40.72929559499115 2014 35.12973370783916 2015 29.226559112167415 2016 36.91020807247439 2017 41.877662575948676 2018 38.924527408418484 2019 50.20359574133761 2020 52.274226899995206 2021 39.63089770653047 2022 34.44144242287414