Year	% of GDP
1972	21.76551984367935
1973	22.00372004890751
1974	21.348280544914143
1975	22.159466698666808
1976	24.702069662191874
1977	24.2205044173495
1978	22.41867876629392
1979	21.18776512944322
1980	21.458114954344566
1981	22.52755928867397
1982	22.16231438983749
1983	22.33759106239634
1984	22.73840361566068
1985	23.47787372114276
1986	23.97441857330069
1987	22.6659781927825
1988	24.189221935267653
1989	24.648281244068297
1990	24.418581524101075
1991	24.439399806757734
1992	24.88400500044703
1993	22.41930067481997
1994	23.108627077660802
1995	20.70239170361952
1996	21.91060215706827
1997	22.615899717526872
1998	22.709464282749806
1999	22.387248258690786
2000	24.24033655326073
2001	21.88995215311005
2002	22.467438007623613
2003	22.058135473709875
2004	21.812444097305335
2005	21.79285553808133
2006	21.420267558141553
2007	21.06515138556278
2008	20.49108176974751
2009	18.882842632890775
2010	18.601276688476318
2011	20.017878968474427
2012	20.13559692991837
2013	20.64349724208476
2014	20.63152196503574
2015	20.47070511152636
2016	20.813449921385814
2017	20.73388981931145
2018	20.824373988058014
2019	20.66847884998624
2020	19.866996025844614
2021	20.67189544569623
2022	21.07648111413703