Year	% of GDP
1977	9.05018964746194
1978	9.76355867110763
1979	9.3327310239625
1980	9.547541479656596
1981	6.860275867260123
1982	6.398343739224805
1983	6.549519273274852
1984	6.834405578392564
1985	7.3377439695385815
1986	7.421188765647358
1987	7.422876126593111
1988	7.4857788509359775
1989	8.183981385352016
1990	8.145274251779574
1991	7.5253343660612515
1992	8.594409267973447
1993	9.488414429175823
1994	9.140838301847833
1995	7.473439341234926
1996	7.161074750131973
1997	6.9341727169053975
1998	7.1092734251915735
1999	11.192481149219903
2000	10.60091832964105
2001	11.428307380224126
2002	11.122250161103356
2003	10.711804984381185
2004	10.396728463411474
2005	10.054386171491473
2006	10.550471814748265
2007	11.12145980859419
2008	11.901328384309146
2009	11.180967204845194
2010	10.67408053442397
2011	11.033996016039751
2012	10.669650549740759
2013	10.178973529488854
2014	10.177722078277618
2015	10.39512975055733
2016	10.227672936501051
2017	10.684511578597347
2018	11.058052924921924
2019	11.30179537274668
2020	8.73066319487876
2021	8.619465896151667
2022	9.579804223549761