Year	% of GDP
1966	20.48306086707151
1967	20.992007659902832
1968	22.062185066221584
1969	20.731310852356494
1970	19.544806519399195
1971	20.330889192044957
1972	21.31019208805351
1973	22.17555398843474
1974	24.10175615722524
1975	22.739856123674464
1976	21.65834332998654
1977	23.660234072882176
1978	24.558671522918935
1979	26.01909105269245
1980	27.772777472785
1981	17.172474145419773
1982	16.774070626305576
1983	18.681454601859432
1984	20.666849617493213
1985	21.064035082125603
1986	24.56755514364019
1987	25.692595002883973
1988	25.233043651651947
1989	25.243976241878574
1990	23.54260612501739
1991	21.295907095011042
1992	23.902122084030804
1993	23.99180626304943
1994	24.486278846539804
1995	22.574238376526505
1996	21.515094400569033
1997	20.598863019328547
1998	19.442220272612907
1999	27.148306021953573
2000	28.0648224548713
2001	28.355647477339335
2002	27.725103131169902
2003	26.624716908920256
2004	26.779452046285208
2005	27.845966813105406
2006	28.109025617804882
2007	29.645899659458756
2008	31.708369379420592
2009	26.062967844883495
2010	27.78109269505553
2011	29.599626827394342
2012	27.835786979687605
2013	25.781114753177476
2014	24.627605056017405
2015	21.528723625694525
2016	21.646245758795242
2017	23.543334604671646
2018	24.553603342234382
2019	22.98407074910696
2020	21.119208855398995
2021	24.858976766785194
2022	26.890649154616952
2023	25.776258283902344