Year	% of GDP
1972	26.296241443166764
1973	25.358371056534207
1974	25.83739512815914
1975	29.655064923267176
1976	30.08034626518669
1977	30.199654025229105
1978	32.457711203194414
1979	35.44890806071557
1980	33.827907624168255
1981	35.857411333835344
1982	37.220302372945
1983	41.581296046405754
1984	44.08985344904519
1985	41.56786335328608
1986	39.79376123372319
1987	37.85439609923256
1988	41.355008066477886
1989	42.763515647467685
1990	43.73468201225407
1991	44.97423480700615
1992	46.993176937451686
1993	44.368999664709605
1994	48.09373882566635
1995	50.594191219419706
1996	48.87676269270821
1997	52.30048337954325
1998	51.34960865138252
1999	48.91225772643879
2000	46.37486398168146
2001	40.081772000628256
2002	38.42802088915963
2003	39.398793615194
2004	40.61435064574016
2005	43.62664151036996
2006	48.16852073607318
2007	49.970919838468966
2008	44.358468880677734
2009	43.86310602134227
2010	50.591580905800704
2011	48.80921090043095
2012	47.253102209668604
2013	45.51569710627191
2014	47.29504779947457
2015	44.0462153091754
2016	44.885009882464985
2017	46.11666277084734
2018	41.71553010268315
2019	40.904524288876594
2020	40.971327601179745
2021	44.01379271500127
2022	41.75333304779918
2023	40.86718771930989