Year	% of GDP
1972	9.14083398898505
1973	12.3629389200354
1974	17.1156528011541
1975	19.3234342280602
1976	20.4924265842349
1977	17.8550953320184
1978	14.2135187646999
1979	12.6408260999701
1980	11.2895518767813
1981	15.1164162493044
1982	12.8807234103631
1983	12.0255084185558
1984	12.666273548307
1985	8.55842900587001
1986	8.29722190377928
1987	7.92210941051674
1988	6.64047313784689
1989	7.00436948282383
1990	9.38453139733564
1991	11.8593607878807
1992	14.6872963797026
1993	14.228140914387
1994	13.9902576390954
1995	11.8934437479984
1996	10.0900408938312
1997	9.6855105359072
1998	12.1559474412172
1999	13.8731694622537
2000	14.7111330843286
2001	16.5861602106911
2002	19.2801590248722
2003	19.9773621242987
2004	21.935704704551
2005	19.763428572926
2006	20.936231035363
2007	23.461755821797
2008	26.3022588108671
2009	29.3564386244731
2010	27.5149277438416
2011	27.8535285319926
2012	32.9104608560684
2013	33.1944622770528
2014	32.5836928214003
2015	35.9943679768934
2016	32.6906447797128
2017	33.9522213058753
2018	34.7396633171423
2019	35.9371549010473
2020	39.7284270657103
2021	34.5306207968294
2022	29.8880270731178
2023	30.0836274989988