Year	% of GDP
1971	11.174200663756338
1972	11.629021966851763
1973	10.527015440236424
1974	9.893884107489024
1975	9.230995012119166
1976	9.276450513800683
1977	10.513199579716156
1978	16.72346541085855
1979	16.918378681895614
1980	18.199161732213327
1981	16.686494528144653
1982	18.10202143897517
1983	16.91303277007391
1984	16.16341812710401
1985	16.251617398228326
1986	11.713546160483174
1987	14.693239546697928
1988	11.155629912819288
1989	10.135061795297627
1990	4.011252435091831
1991	4.056354098025115
1992	3.2652087741592575
1993	3.513902175977895
1994	3.25710501016928
1995	13.811828313846638
1996	13.494329303170623
1997	15.130508943450726
1998	10.67320826467927
1999	10.173516785109884
2000	6.663177452339688
2001	6.308462919770781
2002	6.708028503914075
2003	8.615427787896795
2004	8.004947057877231
2005	9.812451035334345
2006	10.306543885799913
2007	10.157078689140263
2008	11.243544197721677
2009	10.822623067821597
2010	14.589827540201735
2011	12.780537904737862
2012	12.14547690391651
2013	11.769325625389271
2014	11.806658532231102
2015	11.886409575765237
2016	9.592110256863654
2017	10.183766729149667
2018	9.288194708346369
2019	7.665108887951262
2020	4.303082852720442
2021	3.705619320916099
2022	3.9023166106169147