Year	% of GDP
1989	25.74234581451998
1990	23.323057896341503
1991	19.671914445988584
1992	18.974168662783107
1993	20.3532234109561
1994	21.449026064825407
1995	20.65622227559876
1996	20.469011792009145
1997	21.861963476356962
1998	21.034203579246896
1999	21.350748617374947
2000	24.44371010522608
2001	23.071613411801064
2002	24.15551177250976
2003	23.84306717728424
2004	23.106176128104167
2005	24.507546706364753
2006	27.34286057183266
2007	27.84058463862887
2008	27.283087407107686
2009	24.5537141450202
2010	26.225484318442856
2011	27.44152965106137
2012	28.07060490944659
2013	27.80790005174151
2014	27.52765310208003
2015	26.988798630667244
2016	26.657841794552816
2017	27.39414603102758
2018	27.781453431385785
2019	28.49817178220854
2020	24.076021625268133
2021	27.395844448771893
2022	31.359316778655828
2023	28.791693440718504