Year % of GDP 1994 27.047891936144087 1995 11.564049306622557 1998 25.041536372324092 1999 20.286100600354512 2000 21.162891502152245 2001 22.758531301729832 2002 22.535247680162502 2003 23.046306392474474 2004 21.57384266884291 2005 19.948099863435772 2006 19.500541407975405 2007 23.006532691076895 2008 21.532166759470538 2009 32.108974715408344 2010 27.377239002159982 2011 23.3499683933859 2012 24.195855126175786 2013 24.606189979680952 2014 26.461753978490194 2015 30.647650515882795 2016 31.02844675242157 2017 30.71030517229365 2018 28.94414784275628 2019 29.614029776942076 2020 35.299818592377164 2021 30.5455761442173 2022 31.75251902434868