Year	% of GDP
1988	15.19625889392287
1989	16.21815866939733
1990	15.7712675910964
1991	15.38225789370031
1992	18.608569294072
1993	19.731183870168337
1994	25.75760706598313
1995	25.715756194523546
1996	23.474065739838064
1997	23.618468775500887
1998	23.245980856813322
1999	23.352233366419643
2000	24.405224162613973
2001	25.06108347957334
2002	25.43636452509791
2003	24.51510803225909
2004	26.651642287266515
2005	27.816551598078604
2006	28.37262456570018
2007	28.425900268696854
2008	28.356853275735443
2009	24.32606509256921
2010	25.620626977233428
2011	26.019590433626476
2012	24.736890942386225
2013	23.37609493943375
2014	23.47244670813321
2015	21.350931316251714
2016	19.923067720884816
2017	21.08633405614428
2018	21.351962703686095
2019	21.15810743355674
2020	18.579763865062155
2021	20.485616782280765
2022	22.44108853976325
2023	21.422447449109246