Year	% of GDP
1987	31.9089121693983
1988	19.7363927884801
1989	30.3019711262335
1990	36.9958648805975
1991	16.8800455826601
1992	19.9047154993293
1993	17.7942339413151
1994	17.8376089472006
1995	19.3436639708266
1996	25.922048776799
1997	16.7788120542216
1998	5.17003700619145
1999	16.0897902835792
2000	30.535152185722
2001	20.35664897038
2002	18.1172651196065
2003	17.8117065078813
2004	20.5072458932071
2005	24.9081038011301
2006	19.4762524278938
2007	20.0784433322394
2008	22.0912039942029
2009	10.2736499740055
2010	10.1728023386414
2011	14.0634051116026
2012	12.1349569552354
2013	11.1133699718905
2014	8.82992886177661
2015	4.89963192640452
2016	3.65533512745275
2017	5.57117152728362
2018	8.53882490078466
2019	5.84622688648033