Year	% of GDP
1987	20.27833546461824
1988	20.104819696539757
1989	20.90050945936548
1990	21.69626037610922
1991	20.898607729617563
1992	19.30584138207615
1993	18.44924474769598
1994	16.94036233528093
1995	16.67844713479088
1996	16.94439425703433
1997	15.47135798583574
1998	13.62664338106408
1999	12.63759705651115
2000	11.852296854761574
2001	11.315751145961341
2002	11.479395350391538
2003	10.650371136154229
2004	10.122629278471146
2005	9.576146576978148
2006	8.464394960012358
2007	7.8261701557425845
2008	7.6881171426912145
2009	8.241946150510932
2010	9.012409412710086
2011	8.732162331560511
2012	8.306346051830085
2013	7.819767670014414
2014	8.025011142062905
2015	8.550376621102485
2016	8.248303469551905
2017	7.653294133204157
2018	7.335493025124319
2019	7.594463296836879
2020	8.08548767559934
2021	7.587176073784176
2022	7.713276810720759
2023	7.191089680089277