Year	% of GDP
1976	21.365501796168754
1977	20.932731568920193
1978	20.335502578913328
1979	20.19592559794328
1980	20.567882339844658
1981	19.74996496723046
1982	17.65884963897878
1983	17.170582898491627
1984	18.853861267109615
1985	20.866603400225237
1986	17.957416588857615
1987	21.328301729558994
1988	22.229085711356106
1989	25.062005395855397
1990	19.20025826667666
1991	18.2870623004901
1992	18.008001922950136
1993	18.57813108010189
1994	18.561558736330365
1995	17.481141352982814
1996	17.817016317539938
1997	17.749615035277515
1998	17.567519542847126
1999	17.07045034728353
2000	17.454101433216923
2001	16.813639899708125
2002	18.39716599042262
2003	18.713310423935447
2004	19.766087666328637
2005	19.570872251836878
2006	21.467572618622466
2007	21.738434886540286
2008	21.068935980660033
2009	18.74560617507483
2010	19.468532554094764
2011	19.691879440762396
2012	18.878963034507777
2013	17.969043074012895
2014	16.740466345288585
2015	16.711954458213192
2016	16.5204738264376
2017	16.66194976571135
2018	16.26556601501351
2019	16.290560243411075
2020	17.43536102775182
2021	18.738703752390876
2022	17.549570850544292
2023	16.919326564643477