Year	% of GDP
1970	27.077111336956193
1971	25.49382626400346
1972	24.78030743670123
1973	24.98015561331263
1974	25.735018203368735
1975	24.056013031204884
1976	25.626718940097764
1977	25.627651717443676
1978	26.055073932571926
1979	26.141148831596183
1980	24.757248898602178
1981	22.507485434262904
1982	22.194270721984328
1983	22.77609923386856
1984	22.865127224372227
1985	22.471452459783475
1986	22.086122715383492
1987	21.92190257051854
1988	21.98321813552816
1989	21.274725807200408
1990	21.107473021600526
1991	20.259765421830263
1992	19.25904952452543
1993	19.982953951602283
1994	20.076807305689066
1995	22.101026030270283
1996	22.368040471279315
1997	22.4219693080886
1998	21.62963812928585
1999	21.03090554507191
2000	20.589781624222137
2001	20.996831509011614
2002	21.066692557237097
2003	20.399281035493864
2004	20.776031292600365
2005	20.279483510625177
2006	20.48806722527448
2007	20.875273464756088
2008	18.992237289284333
2009	17.62824889837165
2010	17.272553270356106
2011	17.64425638649044
2012	17.550877711009242
2013	18.031821822676726
2014	18.860548523118492
2015	18.531728968096704
2016	20.19833285025343
2017	20.68469513763577
2018	21.12883754406461
2019	21.492287078098528
2020	21.58867979379021
2021	24.127778511263767
2022	21.4573202005685
2023	21.221074146732434