Year	% of GDP
1969	29.498083262127178
1970	34.15026870368466
1971	33.27672054611218
1972	32.32349955016571
1973	35.93697968361396
1974	30.781948909829005
1975	39.059635626720706
1976	42.53745742894543
1977	44.15504481931377
1978	48.58504006909076
1979	39.345222577500024
1980	33.78461421038581
1981	32.915359459910974
1982	34.44123298640115
1983	34.360290673119756
1984	33.482809776544435
1985	32.440782209761096
1986	34.45742705756123
1987	29.687982726581335
1988	26.237481822411347
1989	27.120245546871136
1990	26.97013324915015
1991	25.86145697513638
1992	27.074986203491964
1993	27.00686014898908
1994	28.40093830360916
1995	29.13694429261363
1996	24.87937805870369
1997	22.95158623966281
1998	25.748099028835576
1999	24.390077444306986
2000	20.677242759452252
2001	25.12438401981687
2002	27.123193491264292
2003	26.11910905235972
2004	26.101439527248655
2005	24.833384986526614
2006	25.166929388351484
2007	27.99862371721744
2008	30.039767568143848
2009	38.77385346720557
2010	36.824745423644636
2011	32.55504195691339
2012	32.37227746608668
2013	35.548272492483285
2014	38.59920384402739
2015	42.80899040072249
2016	43.38669352696553
2017	41.507539796587416
2018	41.00862530139842
2019	39.87225000637719
2020	39.08982168510722
2021	35.06106071879738
2022	30.138046447057356
2023	33.18181187036266