Year	% of GDP
1970	14.315398880184846
1971	14.39301142467649
1972	14.244570995211472
1973	14.686746436858389
1974	15.348540291241978
1975	16.789977732651312
1976	17.18176937453855
1977	17.010907695488655
1978	17.656214215835444
1979	17.52209422447564
1980	17.534144055504093
1981	17.96470489040591
1982	18.346678101104917
1983	18.34632147516471
1984	18.388731091594575
1985	18.577843904733246
1986	18.785438288142245
1987	18.752082256568546
1988	18.513505249230516
1989	18.185986051454794
1990	17.975673866075763
1991	18.157795551413237
1992	18.489911687953693
1993	19.300415866779858
1994	19.444366136099102
1995	19.58965793031206
1996	19.565743300897857
1997	19.600791124551566
1998	19.553054672041448
1999	19.843666866191896
2000	19.21971655541536
2001	18.976168152846835
2002	18.838696520108343
2003	18.97963991238599
2004	18.891359071445365
2005	19.346273421673903
2006	19.258290271855312
2007	18.744792069610188
2008	19.27213095802652
2009	20.68421347542643
2010	20.4925476679965
2011	19.896568088869955
2012	19.86069236935571
2013	19.91594275203436
2014	19.80284203862888
2015	19.761690581525396
2016	19.651101157007275
2017	19.48926401092782
2018	19.339382515964154
2019	19.460482648763044
2020	21.12124636173015
2021	21.784890596820038
2022	20.588785361865423
2023	20.29293777779929