Year	% of GDP
1970	35.3251136581002
1971	44.7741117017585
1972	49.251510260831
1973	57.1917107418153
1974	74.4411307327222
1975	62.4964158962862
1976	58.1535293042443
1977	48.7792804025432
1978	48.8013379079207
1979	84.3541829203139
1980	67.7107851315441
1981	47.0368951632638
1982	35.2293531320697
1983	36.1362132278585
1984	49.4302385895143
1985	36.9529767218709
1986	22.8930495726225
1987	27.5796827056572
1988	24.7421614619954
1989	36.1993936981514
1990	48.6558768141096
1991	27.8476783265963
1992	28.2611526136542
1993	27.8285185550461
1994	27.8536283294125
1995	26.8649643256338
1996	36.8699208406966
1997	33.9039217305219
1998	26.4784043103748
1999	32.8896055971835
2000	40.7661397416806
2001	34.9268648116195
2002	31.8348108510858
2003	33.8929726986092
2004	34.825040164201
2005	38.1771562134119
2006	34.1520126219521
2007	30.8003611618771
2008	32.6040710093919
2009	23.0165618959946
2010	26.6026039782648
2011	29.9468705202351
2012	28.3389822463275
2013	25.3595869913171
2014	21.5388184142326
2015	13.0300594635573
2016	11.1615579117458
2017	13.5394624768111
2018	16.2911609453974
2019	14.5084244384971
2020	10.5957303632833
2021	15.2784667126988