Year	% of GDP
1975	22.79217502794221
1976	23.44795004257248
1977	23.715998443052143
1978	24.30400705991017
1979	24.495446218262956
1980	23.479462323095607
1981	23.264633133266184
1982	21.977900603723125
1983	21.2939805034132
1984	22.612308395699213
1985	21.769638402253175
1986	21.368721899571838
1987	21.73444992514538
1988	22.6936935018279
1989	22.290705365698003
1990	21.631552013728207
1991	20.002756550823943
1992	20.125606630289294
1993	19.73693447206256
1994	20.851866655340594
1995	21.56854059040843
1996	23.014574201306132
1997	23.552132739133746
1998	23.6071937633632
1999	23.518951444499436
2000	24.110881781437886
2001	23.12035253614529
2002	22.27531503503132
2003	22.038086690921876
2004	22.78430309010412
2005	23.20724125326249
2006	24.02852119972417
2007	23.602587509131144
2008	22.07545779077843
2009	19.849163384864468
2010	21.236257054747796
2011	22.089786621685164
2012	22.51908261338092
2013	22.468629312883937
2014	23.025424522633696
2015	23.154009483201566
2016	22.718694108375416
2017	23.37529650071394
2018	23.675426204775725
2019	23.798799141263878
2020	22.911143762211974
2021	24.212756392012782
2022	24.047206622490368