Year	% of GDP
1980	68.1362125392305
1981	58.0699222662964
1982	33.7423368813276
1983	29.0419490949798
1984	31.8871060471681
1985	30.4149282702955
1986	23.3122958880053
1987	30.0343307928011
1988	23.1071212143896
1989	31.1467417262058
1990	37.0437374677071
1991	20.4853120745387
1992	20.7616769769703
1993	17.9580307941121
1994	14.682952911195
1995	15.2459702602519
1996	18.4494024419669
1997	16.418731399958
1998	10.6376958646887
1999	14.7940799756461
2000	18.711078045797
2001	15.0074471454831
2002	14.4906538546743
2003	14.9880274040125
2004	16.6530213443367
2005	20.0931217396654
2006	20.3670614713082
2007	18.9906048191926
2008	21.6815768768211
2009	14.4351176966592
2010	17.3156329535965
2011	23.3980559518896
2012	20.0940234657871
2013	20.8660137007827
2014	18.8709266924557
2015	9.82474436918962
2016	7.62960432748572
2017	8.93795259727704
2018	11.3900811220261
2019	9.8481886760226
2020	6.69558923237194
2021	10.9376756365994