Year	% of GDP
1960	25.900601532239886
1961	24.902568426825912
1962	23.827496408574955
1963	22.257218140525474
1964	20.766066499572744
1965	18.59561661071773
1966	17.44181877585151
1967	16.515886143593754
1968	15.853614366578958
1969	14.497399618531457
1970	12.99091055022663
1971	12.712702516979025
1972	11.9544005362624
1973	9.868775695114895
1974	6.9328248557647045
1975	6.672281015865011
1976	6.487048744482831
1977	5.665368244486063
1978	7.462283232119573
1979	8.571918274980577
1980	11.060463584910478
1981	13.694148246210144
1982	12.774177407303346
1983	11.057129176436618
1984	12.307885637635458
1985	12.77052114811946
1986	15.228029450958665
1987	16.302784316837265
1988	15.38501437870751
1989	15.576819225894244
1990	12.49086055759909
1991	12.014241552467867
1992	12.05433007185683
1993	10.398370706982508
1994	10.551562344848358
1995	12.610236143042886
1996	10.346477231416593
1997	9.812699500215029
1998	11.555057892617949
1999	9.914986215444108
2000	9.068419327166813
2001	8.310842002435448
2002	7.825546897467407
2003	7.451094561180002
2004	6.889578469377494
2005	6.501382209055414
2006	7.118211240964538
2007	7.185568231444604
2008	6.122772591238786
2009	6.924489614875876
2010	6.499390725602164
2011	4.642116204566292
2012	6.79693716710654
2013	8.774909772760259
2014	9.378424156844261
2015	10.091601414112562
2016	9.784420380706123
2017	9.827058775948837
2018	11.133388686006708
2019	13.324869174343283
2020	12.212998105241022
2021	12.393095995254342
2022	12.765315121686596
2023	13.013941581840498