Year	% of GDP
1996	0.302210003137589
1997	0.29569000005722
1998	0.265260010957718
1999	0.367590010166168
2000	0.411350011825562
2003	0.361900001764297
2004	0.372880011796951
2006	0.426930010318756
2007	0.356550008058548
2008	0.385930001735687
2009	0.517180025577545
2010	0.479900002479553
2011	0.462350010871887
2012	0.547129988670349
2013	0.542530000209808
2014	0.556270003318787
2015	0.436650007963181
2016	0.443349987268448
2017	0.425870001316071
2018	0.3714399933815
2020	0.330020010471344
2021	0.275310009717941