Year	% of GDP
1961	20.67962758257354
1962	22.02007653312962
1963	22.560117363369542
1964	23.86185557415255
1965	24.988716023730156
1966	25.620112161514808
1967	24.048845405224725
1968	23.31653140772203
1969	23.245635945817252
1970	22.798278367859044
1971	22.8087148832644
1972	22.736244343108233
1973	24.85061184942621
1974	25.82284698496152
1975	22.887401667740797
1976	23.75096889310608
1977	22.794083863125646
1978	22.89722633623551
1979	24.834279807907663
1980	24.877227636832078
1981	25.8617974904848
1982	23.419487301027097
1983	23.112105877773452
1984	24.224760057664085
1985	23.825313433074612
1986	22.432068055370944
1987	23.499484622242033
1988	24.41018736819941
1989	23.773078074210183
1990	21.540155945138828
1991	18.702628912768088
1992	17.852947235383528
1993	18.46374409835122
1994	20.735329026783774
1995	22.514943706327763
1996	22.81521782111431
1997	23.27016909344522
1998	23.080063665621523
1999	24.431376789953934
2000	26.35898678465874
2001	25.3965147417947
2002	24.209696511732137
2003	24.428209145784553
2004	25.864175533268853
2005	26.618049161034996
2006	26.332209433011666
2007	26.021322718456446
2008	25.819231883358277
2009	20.46248601506745
2010	21.52617634807202
2011	22.951383349971223
2012	22.92183964032498
2013	23.334800018294136
2014	23.937125575906926
2015	21.313205810568707
2016	20.46764974947335
2017	21.32043626184867
2018	21.431632189337254
2019	21.581949573017894
2020	20.47510364661346
2021	24.339851489180305
2022	25.518992183170656
2023	23.544300292150698