Year	% of GDP
1980	36.35565217391304
1981	37.41619047619047
1982	43.34383838383838
1983	46.19868421052632
1984	40.35802650944124
1985	42.7914062500039
1986	44.902505446623096
1987	47.27189349112426
1988	50.62818965517242
1989	52.12633181126331
1990	48.91092651757189
1991	49.86560048280025
1992	46.67807692307692
1993	48.74267171444024
1994	49.80977721847431
1995	51.61077873786408
1996	52.366607230046945
1997	53.409664154411765
1998	54.728856606162935
1999	56.34129321012454
2000	59.11584511517077
2001	64.53233497925311
2002	64.85666465020576
2003	65.44778042010503
2004	65.42572347222222
2005	69.11182550554469
2006	72.66382264798516
2007	73.76875372944546
2008	73.82475036541629
2009	78.02588148907236
2010	75.11233778026529
2011	73.26807048175388
2012	74.25797929697715
2013	73.62187801439433
2014	71.85605920581943
2015	73.29977892198343
2016	71.6219992983249
2017	68.88968784053255
2018	70.11552814048859
2019	63.310563722520854
2020	77.20742561709667
2021	72.39657086967635
2022	58.9746863289787
2023	60.904137158394015