Year	% of GDP
1980	28.165692260193147
1981	22.655262945029502
1982	18.3829110524576
1983	14.83864832195614
1984	15.61732887919052
1985	15.0709995589298
1986	14.45576028345877
1987	15.483749346658145
1988	16.17128098055841
1989	17.83537465079688
1990	19.270813372741078
1991	19.500079713202048
1992	21.282557721224247
1993	15.597196416609593
1994	21.01763655259448
1995	21.730694698918278
1996	19.990808249665033
1997	15.575867879231604
1998	14.129155955748121
1999	13.455998681472165
2000	16.646258428989142
2001	14.376760488261938
2002	13.701961234166388
2003	13.334588328619198
2004	12.263263686274803
2005	14.05952880273094
2006	12.330871058598982
2007	8.413666782905779
2008	7.911530781770583
2009	7.321586652958696
2010	7.174120796006278
2011	8.641463027928591
2012	9.250506424373883
2013	8.670579575560073
2014	9.646846486896738
2015	11.481135120667622
2016	11.426909585443543
2017	10.84527955356628
2018	10.634779347841256
2019	9.547401368484866
2020	12.85368882816734
2021	15.328084741517289
2022	13.602275831951891
2023	12.241413194390507