Year	% of GDP
1981	35.24853396365732
1982	34.03422870068854
1983	36.75353899528036
1984	34.67277477775569
1985	29.95494766212695
1986	34.24207640444236
1987	34.259856516652725
1988	33.63085589693165
1989	28.932013820237508
1990	28.1249054727072
1991	25.54953020895657
1992	24.074424666849676
1993	25.01049012634334
1994	24.194785399340713
1995	23.1672053186825
1996	22.916078432473757
1997	20.934715481019992
1998	20.76523788885337
1999	21.802165164374003
2000	22.37846264784917
2001	21.399657113912212
2002	20.893050700937756
2003	20.661613838068362
2004	20.362671653357292
2005	19.89944574379975
2006	19.809702108516642
2007	21.382129631622345
2008	23.259214771230354
2009	23.294265597658228
2010	22.58762595418542
2011	21.04150780066663
2012	22.867797986600582
2013	22.867986234668713
2014	23.018422325796113
2015	23.235128011375192
2016	23.067456694300436
2017	22.881297521458883
2018	22.53453880231988
2019	22.364056255432317
2020	22.85602068875802
2021	21.48315359319867
2022	23.428119704366885