Year	% of GDP
1987	31.921824104234524
1988	29.91202346041056
1989	33.06666666666666
1990	21.962616822429908
1991	15.891891891891891
1992	14.272224470524753
1993	13.106243113526434
1994	12.069854898828542
1995	20.37769973552347
1996	22.408790006538656
1997	12.390136122037301
1998	12.88332250873282
1999	15.721114393566388
2000	18.026644144454288
2001	16.797525834590942
2002	16.257821746445384
2003	13.630748979986027
2004	14.561736160939983
2005	16.006073388094254
2006	23.03302018188033
2007	24.62104741655432
2008	26.77929208652075
2009	28.21155047462292
2010	27.764711327757542
2011	23.691252568716777
2012	31.39140397196134
2013	29.55950945524674
2014	32.49102806630496
2015	32.58800332830495
2016	31.79472602256581
2017	31.4657391469581
2018	31.650449185929535
2019	30.00804874259803
2020	25.937448314695622
2021	24.139498243798364
2022	21.47616553641332