Year	% of GDP
1970	12.373517566232634
1971	12.389776302235695
1972	12.694122375452643
1973	14.219071454552997
1974	17.6350212252194
1975	16.14246132316066
1976	16.868727698082818
1977	17.011327880761463
1978	16.415580607376864
1979	18.185575375204195
1980	19.581445464691598
1981	18.70774767386783
1982	17.880417981776926
1983	17.06827822457377
1984	17.5381887658217
1985	17.11845383313163
1986	16.18935828677839
1987	16.602833577792016
1988	16.874415860154812
1989	17.544718549448337
1990	18.064391573659744
1991	17.293805441754824
1992	17.131824704069864
1993	16.1832889368578
1994	16.934001933614297
1995	18.131555391802326
1996	18.8805175050503
1997	19.661676992592568
1998	19.905485456679433
1999	20.01132452824443
2000	21.640512202588376
2001	21.162648038729714
2002	20.975247177451152
2003	21.61180667775611
2004	23.09700760878454
2005	24.42829814296031
2006	26.161788605992875
2007	27.12650374895032
2008	28.528770618984687
2009	23.891779530055445
2010	26.293662099372035
2011	28.583813916929245
2012	28.197457490926958
2013	28.269792595263652
2014	28.42293650963321
2015	27.131540163315155
2016	26.367576256920106
2017	27.51708786088947
2018	28.45471154843987
2019	27.898721706040764
2020	25.65137976724266
2021	28.140720637750753
2022	31.67763825584764
2023	29.360105104364088