Year	% of GDP
1972	25.442273536250628
1973	25.63840259262208
1974	26.475600627858135
1975	26.97601481412906
1976	27.79434954748705
1977	28.09216111760274
1978	28.105585739071252
1979	28.19523681336846
1980	29.48336302149184
1981	30.0814119621404
1982	31.633202692484343
1983	31.0834105826378
1984	30.88892150597426
1985	31.915836650744616
1986	32.1630813377571
1987	32.04378398194402
1988	31.698371977494848
1989	31.662992232696112
1990	30.437381504914043
1991	31.68790392915677
1992	31.97245883530791
1993	31.59738657585875
1994	30.908406764974085
1995	33.18334677796797
1996	34.616770843374496
1997	34.585538086758405
1998	32.73630248699958
1999	33.846627780831724
2000	34.15673710848968
2001	33.94542185307542
2002	33.910720198373745
2003	33.491541107555406
2004	33.30249990846336
2005	34.15043246223318
2006	34.21649658160501
2007	34.51572264306928
2008	34.802757111175374
2009	33.62470691079939
2010	34.43879954481034
2011	34.134645371810166
2012	33.795421613573005
2013	34.18796918931773
2014	34.06898753669244
2015	33.615476169297665
2016	33.57770658214023
2017	33.641880704015755
2018	34.02983594513538
2019	33.915232901472756
2020	33.893850696469
2021	34.245361822625846
2022	34.681286725164505