Year	% of GDP
1981	20.26370868277177
1982	20.33225096689299
1983	21.098252517530142
1984	17.736358424642614
1985	21.054503112678525
1986	21.00999899632732
1987	18.783512946971246
1988	21.019641695404903
1989	18.35403220591592
1990	17.78259534095131
1991	19.494587148208808
1992	17.654493032605885
1993	18.37624999836369
1994	20.927080231718215
1995	19.993715565622878
1996	19.101080210039722
1997	19.198531441131184
1998	17.450565877883108
1999	16.257369131308796
2000	13.933400413940037
2001	13.92535960440225
2002	11.811813081575503
2003	12.060606836961503
2004	10.861569922675637
2005	10.061083321566697
2006	8.852872608104235
2007	8.401379657019945
2008	8.168912972210691
2009	7.83841193667148
2010	6.552816976057821
2011	7.171084296222589
2012	7.7245466717433136
2013	8.92892932163337
2014	9.635811602692494
2015	9.428437321931952
2016	8.679697782266011
2017	8.741993492335236
2018	9.648947481234279
2019	11.522358697969944
2020	12.667265164854516
2021	14.610702972179466
2022	13.593513327056447
2023	15.363799088192206