Year	% of GDP
1990	17.758267984998298
1991	16.397407046653008
1992	17.33943129846888
1993	18.239391130957397
1994	19.194910468924498
2000	22.357223238148826
2001	21.606984075660822
2002	23.553455969050795
2003	25.109832883586613
2004	23.738483008556003
2005	22.609922298554945
2006	22.668933571658467
2007	23.29432965981935
2008	25.855493114329942
2009	25.6577916443877
2010	24.15228313468472
2011	28.792574091563495
2012	28.92571160226696
2013	34.40602654325169
2014	34.58941144435368
2015	34.3048945637454
2016	28.13188591860683
2017	26.29930199310403
2020	28.459014744887057