Year	% of GDP
1976	34.01352952522573
1977	32.453115385755105
1978	30.062331377962657
1979	25.13378903342754
1980	22.95854529815902
1981	19.908219350049535
1982	18.318270220798535
1983	18.536852680610103
1984	17.621504071208214
1986	14.783385583077093
1987	15.197764472426636
1989	13.630182387495736
1990	16.043375230953252
1991	13.561856030418909
1992	13.651642792925726
1993	16.250527912260186
1994	15.648362453387197
1995	16.51163227005979
1996	17.13007735630843
1997	16.66428242664292
1998	16.12973432759582
1999	13.661916375334487
2000	14.368437695825756
2001	14.214072822783061
2002	21.34317687823917
2003	21.7345330075457
2004	13.782834874786493
2005	13.708609732895324
2006	21.417229539398495
2007	22.231444171701344
2008	21.12680239805287
2009	18.32136630463265
2010	17.33185579215687
2011	17.333216546036617
2012	16.209945131667414
2013	15.194466372912075
2014	15.909027608975986
2015	14.305827300186715
2016	14.622254967431687
2017	13.068848578336075
2018	11.393915414137249
2019	13.690795444956821
2020	15.012135318938558
2021	19.541963312112212
2022	17.51985516570369
2023	15.133082494839293