Year	% of GDP
1988	27.269324349616326
1989	33.839441535776615
1990	30.13039428748836
1991	36.267429388630674
1992	34.61336138874277
1993	27.00717159349309
1994	25.5374539500614
1995	25.438878404471303
1996	23.6674001136852
1997	21.97638946875024
1998	14.964122233491265
1999	14.830300046638836
2000	18.693760194768807
2001	21.949817334941756
2002	20.029546189003277
2003	20.858958480734806
2004	20.90127507973444
2005	20.077496917810258
2006	21.17159180334735
2007	24.16451403346549
2008	25.501219708686385
2009	18.92637573549678
2010	22.615050551973564
2011	24.260737931263932
2012	24.55369335451681
2013	23.271681987019374
2014	22.390864228773882
2015	22.148725318158952
2016	23.095422473109615
2017	23.606755862165084
2018	21.91808915124632
2019	22.661513772223454
2020	23.455829148015802
2021	22.70917292968963
2022	22.792934484515673
2023	25.69760894444811