Year	% of GDP
1970	21.71682354023056
1971	24.978006190475817
1972	27.963137838585165
1973	33.85374731043913
1974	49.72527120523509
1975	40.03010251103878
1976	44.314231083677896
1977	40.32827829263353
1978	33.764440562470654
1979	39.03711763748935
1980	44.19014225209315
1981	37.68676291577096
1982	28.673290377657068
1983	23.39724625860802
1984	21.74973422730318
1985	19.29559249785423
1986	12.44517843488609
1987	16.541409131429347
1988	14.79794206789661
1989	14.654832806960918
1990	26.270429243643083
1991	18.99479582500907
1992	21.428846618699914
1993	20.232366041846724
1994	21.824995382078967
1995	23.707214426800995
1996	26.07215027902908
1997	25.839903714771385
1998	22.18021784890428
1999	28.176730476696974
2000	33.54904018491237
2001	31.21439493428279
2002	31.202334303377345
2003	34.105298727702014
2004	36.748248027278194
2005	41.108666485218606
2006	42.420101915210594
2007	41.77182513938254
2008	43.962911915276884
2009	35.580003697671735
2010	40.64657012945589
2011	42.7460257121432
2012	41.95230370043348
2013	40.29051992667262
2014	36.89536057548622
2015	29.38250376928677
2016	29.227664465799958
2017	31.45039088428499
2018	34.50967926243646
2019	32.42945516590539
2020	26.937349087294006
2021	32.494903517558484
2022	38.79425931428741
2023	36.27812472688704