Year	% of GDP
1974	17.276966592768137
1975	17.28992203291943
1976	9.271636187821734
1977	7.499763414403331
1978	4.258017756840007
1979	3.8542913844286626
1980	8.300485142510611
1981	4.3796411729633045
1982	5.522985041915511
1983	9.453587562623863
1989	24.302032738805426
1990	22.018492399310453
1991	22.58014073494918
1992	23.330887747615552
1993	25.836599336750076
1994	27.022264936729133
1995	26.751117734724296
1996	25.218355746568694
1997	25.165219644939747
1998	29.867256637168143
1999	28.613569321533923
2000	25.814371933902148
2001	29.398559549852855
2002	27.169793677380444
2003	24.067785417738786
2004	22.05288609998682
2005	18.40870010451103
2006	18.061758605932248
2007	22.62047295284015
2008	17.14098019894205
2009	23.287618583974428
2010	22.150882825040128
2011	18.72720250611509
2012	18.439389709220695
2013	20.164318211935157
2014	21.41841614505438
2015	25.061676229047137
2016	26.222717805435614
2017	26.477212393343564
2018	24.14167654789161
2019	25.040396219495513
2020	25.430986254178816
2021	22.467059102589168
2022	20.124238185447034
2023	22.8180468194522