Year	% of GDP
1970	25.336667886297388
1971	24.896864080845784
1972	25.304718074160455
1973	26.687371847771285
1974	26.964440728365442
1975	24.562031266101126
1976	25.41275449490244
1977	25.483145860338613
1978	25.71138064858285
1979	26.011703115656715
1980	25.586166790728054
1981	26.039087001935425
1982	24.41305994016027
1983	23.63111411095601
1984	24.53867893679204
1985	24.279398840957743
1986	23.747063504957953
1987	23.923493723948074
1988	24.593336993106952
1989	24.849750706032793
1990	24.420611400136803
1991	24.109956362447196
1992	23.79941134338476
1993	23.475592949747
1994	23.831001236184477
1995	24.50936997927722
1996	24.50452802617919
1997	24.56626896537999
1998	24.20198156414355
1999	23.61070681844593
2000	23.916181756006804
2001	23.014590990513728
2002	22.686129585517254
2003	22.804555814799997
2004	23.71057965920159
2005	24.22921046591913
2006	25.130602874605067
2007	25.793949342375843
2008	25.78512460475142
2009	23.70703719596405
2010	25.332374624050217
2011	26.106874031805493
2012	26.307290936009466
2013	26.451881684577383
2014	26.57251915766745
2015	26.575580186279495
2016	26.292318280409937
2017	26.817505123417025
2018	27.318481033960268
2019	27.08704811910921
2020	26.857199679598732
2021	28.11212429051098
2022	28.230786873272134