Year % of GDP 1990 11.436798693871431 1991 13.159595621720687 1992 10.768657182357401 1993 13.149247178533614 2001 17.19292789468016 2002 17.49311121116614 2003 18.4776861347961 2004 21.75210551884509 2005 21.321508315786012 2006 12.53461852884695 2007 13.877984546399166 2008 13.895967907455475 2009 12.61246152205861 2010 13.3883874032931 2011 14.865790361573374 2012 15.368181010655075 2013 10.671836497111961 2014 11.2521859793493 2015 11.690563209965484 2016 11.058329192093996 2017 11.57703127543349 2018 12.244241507482997 2019 11.996995905713705 2020 11.340431962926125 2021 12.24468672533454 2022 12.297535806285326