Year	% of GDP
1977	28.080911471616353
1978	30.42539592288455
1979	27.309197150877857
1980	22.76337955006652
1981	18.850841510973407
1982	27.984061542579553
1983	25.04873976998276
1984	12.478012253187254
1985	15.582548886098607
1986	14.449212368256937
1987	23.246611107313655
1988	15.88815371405971
1989	2.3362575914470325
1990	15.845371914403664
1991	11.789132943270685
1992	17.100050399525006
1993	19.8578997022904
1994	23.016147348691764
1995	22.34758025425124
1996	24.979950344937144
1997	25.9482603917488
1998	20.267822179809222
1999	18.37358583525576
2000	21.903624925482248
2001	19.582407422471647
2002	18.67408061916083
2003	17.906200280163958
2004	15.060443710693109
2005	17.208219841346313
2006	19.84733894041475
2007	26.48707919308092
2008	27.932977092290034
2009	27.204833626189227
2010	22.640022035654297
2011	27.459386232476156
2012	29.447001585468108
2013	30.444351851648797
2014	27.455889458228334
2015	31.61350481958448
2016	29.71277912954581
2017	31.580909671123603
2018	33.220829906482145
2019	30.93383697852226
2020	25.34741762808425
2021	30.642095481221187
2022	37.15295322806997