Year	% of GDP
1970	16.689281264210585
1971	16.623207442557995
1972	15.990593890580671
1973	17.334534116181732
1974	19.555873319158927
1975	17.70524378007438
1976	16.132755944637054
1977	18.56257628906304
1978	17.595247690241862
1979	17.981749712921445
1980	18.925194238075484
1981	19.048314225731406
1982	19.05084319313903
1983	20.466368565005325
1984	20.294412554147705
1985	18.46474123026174
1986	18.406083265139237
1987	21.67737462380487
1988	25.63277287493948
1989	29.574709420274765
1990	34.242483669238624
1991	34.41258802586939
1992	31.136728778670054
1993	31.349017872628337
1994	31.269608494235708
1995	32.35096905501547
1996	31.19615298050879
1997	22.737675439620748
1998	12.416790792319048
1999	11.281453647794304
2000	13.497658693997025
2001	14.961362963262308
2002	15.147970960787774
2003	16.826959226112788
2004	18.635913815401793
2005	20.688231827780246
2006	19.99484801403321
2007	18.55881597580336
2008	19.864191857177484
2009	16.382943940400885
2010	17.876814198921277
2011	20.137462892147507
2012	21.101317742925623
2013	19.676375620027258
2014	19.441609202630566
2015	18.235286841469556
2016	17.335713356038315
2017	17.131884325207132
2018	16.936852785652874
2019	16.87116255655842
2020	16.778533774769908
2021	16.944579124175633
2022	17.29747615018171
2023	17.325172129810632