Year	% of GDP
1970	15.163536189807411
1971	15.580054948518496
1972	16.313526568325834
1973	16.105446680849433
1974	18.524018183567097
1975	18.732255329940887
1976	20.044703661030926
1977	21.379674893156494
1978	21.678756855951324
1979	22.385229182308297
1980	20.186099459667265
1981	21.66535047362939
1982	21.11997186744311
1983	20.33291502173451
1984	21.004616032319927
1985	21.112592925083327
1986	18.703921090725665
1987	17.984050776256552
1988	17.57798806736831
1989	18.516658520875225
1990	18.25943749971971
1991	17.036009349145942
1992	17.479189957607694
1993	20.39909608440397
1994	21.87108847436637
1995	24.672489524845705
1996	23.704682223754382
1997	24.149790549301038
1998	24.06295229046058
1999	23.200741692865464
2000	25.62773210008531
2001	25.649011668101075
2002	24.407467338300826
2003	23.302192912391053
2004	24.009828419238474
2005	24.601092381788245
2006	26.173488433082575
2007	27.36104225323156
2008	26.862774694794417
2009	22.39916173399637
2010	25.07404985131691
2011	26.87246346608758
2012	28.379242835957353
2013	28.63324307969865
2014	29.10882818640909
2015	29.715982372361218
2016	29.327890746643387
2017	30.73373331963602
2018	31.353554200788626
2019	31.602419727620624
2020	29.432277025869475
2021	32.112914481123525
2022	36.507401651214785
2023	35.05454365151295