Year	% of GDP
1977	15.834502103786816
1978	9.634790965881788
1979	9.615729986337078
1980	15.764247734591477
1981	13.186119873817034
1982	19.73008933662802
1983	21.456602031394276
1984	13.71319386605262
1985	17.016418193494136
1986	16.958543983822043
1987	17.490785463919877
1989	19.80764206401045
1990	19.034112444725203
1991	14.518378996901477
1992	19.388871019620456
1993	17.0624191461837
1994	16.41485118134397
1995	31.786191309419653
1996	39.57787752840122
1997	28.819587010214203
1998	27.552456967578976
1999	33.832850894145786
2000	32.68491061069997
2001	28.7439151798005
2002	32.12153958491909
2003	31.20227641433176
2004	32.70077490615982
2005	29.834357577113114
2006	26.597064102879344
2007	27.793798277320185
2008	26.587454389131675
2009	25.34632476988487
2010	23.448358518823746
2011	20.568653833741294
2012	20.838953407023915
2013	20.36915869870525
2014	19.860650632224967
2015	19.791137595616824
2016	21.954981578665993
2017	15.796898623043582
2018	14.56188075337434
2019	20.849321926906455
2020	9.458503421602288
2021	9.245535247385396
2022	16.086884781188154