Year	% of GDP
1990	36.36211266942255
1991	38.080953058754496
1992	34.508786990297686
1993	32.93363927754528
1994	32.43095268062427
1995	32.33217455655265
1996	29.9554993609313
1997	30.986774919375552
1998	30.085067292757607
1999	28.32224048955945
2000	26.6456616155542
2001	25.88300188275342
2002	24.670549633952486
2003	24.332716734022426
2004	23.09117374951765
2005	22.526601140916508
2006	21.664537484535686
2007	22.1476685287002
2008	22.291521134719314
2009	23.67902712045517
2010	22.59783368029037
2011	20.958576549714564
2012	21.428051605779526
2013	20.567064186916824
2014	20.602716268918297
2015	21.040059441385182
2016	20.600902043525632
2017	20.06058952679583
2018	19.192195341426487
2019	19.03061163706408
2020	20.059030619825084
2021	19.29741108074748
2022	18.787671805867234
2023	18.854098159485417