Year	% of GDP
1980	40.567243856435546
1981	36.59765539509932
1982	31.905236101738144
1983	38.56886974337483
1984	37.44829740038998
1985	31.352207753673262
1986	23.417609927290606
1987	22.38996987975949
1988	17.764888343598706
1989	21.667228390662363
1990	14.449427557061428
1991	25.1521262819148
1992	25.870904237087956
1993	16.09777660873866
1994	17.266614295471093
1995	12.847662629096417
1996	12.668899331775934
1997	15.34354077272429
1998	18.84050373175117
1999	6.952333136586073
2000	16.575059058295306
2001	15.709396897823739
2002	23.347730624646537
2003	23.73581036134799
2004	20.51993544289973
2005	26.735273739890474
2006	30.387953646200877
2007	34.71326042044042
2008	34.94812408842179
2009	26.144697191925122
2010	27.286493128496648
2011	22.402957486136785
2012	28.14636897214433
2013	25.940592602763914
2014	26.844504205107945
2015	25.469097657758656
2016	29.140239401948698
2017	32.99004676675709
2018	35.26443843672033
2019	32.63695481373857
2020	35.09483096440638
2021	25.585291358155065