Year	% of GDP
1975	23.376909221526663
1976	23.771607948508926
1977	23.97003546927974
1978	24.275874439254473
1979	24.143587383379053
1980	23.009142305960495
1981	21.797788476177853
1982	21.39339930802945
1983	21.52144314690425
1984	22.251903004916066
1985	22.561021560215163
1986	23.051813076271674
1987	22.058112186836745
1988	23.07580148746246
1989	23.164320188198072
1990	22.722941827575355
1991	21.731188933950207
1992	20.857202674845883
1993	20.508747400407277
1994	21.92553916347076
1995	22.2416713898062
1996	22.11954227022455
1997	22.12583794430327
1998	22.440740511730233
1999	22.72683076962232
2000	23.76750793844373
2001	23.37508092862239
2002	22.826496388498313
2003	22.514407284935
2004	23.261983687221708
2005	23.670762282878368
2006	24.424011270186714
2007	24.646140611011315
2008	23.531815568710755
2009	20.925186783261204
2010	22.1536368695507
2011	22.953905226385725
2012	22.433625689491322
2013	22.20789743457416
2014	22.733364870386026
2015	23.355341659964356
2016	23.259638454356384
2017	24.04448827847947
2018	24.667507015414483
2019	24.73725130564689
2020	23.851448369776417
2021	26.397068755600056
2022	25.912421343545663
2023	25.186971672276854