Year	% of GDP
1960	11.296833112389669
1961	10.261162594809216
1962	10.200790179247193
1963	10.187337843093252
1964	9.41054892008962
1965	8.519034369517684
1966	10.814237511206715
1967	9.981062668106073
1968	8.981744475579884
1969	7.744776643448999
1970	7.6617693379454845
1971	7.669606558424989
1972	7.736399597247866
1973	8.932096018772548
1974	10.85189025372338
1975	12.293978213985271
1976	12.801203072683698
1977	12.648101137552864
1978	12.903011842484915
1979	14.918804531376246
1980	15.384576848506088
1981	14.507264761620434
1982	14.12592774954747
1983	13.690593886880247
1984	14.009375944128916
1985	12.900036194148711
1986	12.219271899372565
1987	12.584814035675782
1988	13.4904501163017
1989	15.168132090669529
1990	15.506261510196545
1991	16.987726551135058
1992	18.433099041828044
1993	19.651539786468376
1994	20.07814437692546
1995	22.8674487062499
1996	21.92948787138665
1997	22.619386867047854
1998	23.69947007906474
1999	24.815598044292916
2000	26.900922910447356
2001	25.993254753436517
2002	29.5086629350614
2003	30.592436132907984
2004	37.50381405944698
2005	42.00166961486911
2006	45.724480499265226
2007	45.686268679347975
2008	53.368220439222625
2009	46.272869642883734
2010	49.25520649741613
2011	55.62388001351187
2012	55.79372172873471
2013	53.84413194668108
2014	48.92218574704886
2015	41.92291386587568
2016	40.08248571326717
2017	40.74249695452038
2018	43.61696933239858
2019	39.90540353063506
2020	37.75810532928246
2021	45.42308878404383
2022	49.965319969038184
2023	45.853928149001085