Year	% of GDP
1986	16.861292271267768
1987	12.137446197528345
1988	12.610920066725411
1989	12.3170370481653
1990	9.691586102571666
1991	10.95515352424647
1992	11.790516907431728
1993	12.706553519325203
1994	14.479673896678488
1995	13.296582323439146
1996	13.956449855531512
1997	14.594812303259378
1998	10.418680933064357
1999	9.777277330055298
2000	10.457089726278012
2001	11.353775330650077
2002	11.782954451278478
2003	12.838791564300738
2004	14.63909383459261
2005	15.365367093207235
2006	16.93109555468152
2007	17.235938458453333
2008	17.70333275394358
2009	15.669205441683934
2010	18.663897099142474
2011	18.468523885329184
2012	16.81618078757798
2013	17.146853937098832
2014	17.60761673552197
2015	16.092960554141936
2016	16.946023912176155
2017	18.257962313913996
2018	18.09021685976589
2019	17.75846444758607
2020	17.735956582975202
2021	18.317590713200342
2022	18.575479066092747
2023	17.67952130012243