Year	% of GDP
1987	20.763022743947175
1988	20.042194092827003
1989	22.263511311037227
1990	24.467065868263475
1991	24.648829431438127
1992	20.851976952116033
1993	21.540671599009933
1994	14.572397195807502
1995	13.769759643057998
1996	12.22905089611011
1997	12.51539656188079
1998	12.068074819919488
1999	11.875009582803084
2000	13.951785065406977
2001	13.976086184444181
2002	12.60325107415285
2003	10.499540300337113
2004	10.43703711990692
2005	8.875307494670093
2006	7.239061410432942
2007	6.283001334032747
2008	6.535401521367677
2009	6.905395959207723
2010	7.402205098229943
2011	8.150221838778872
2012	7.7613124838941365
2013	8.692305621029556
2014	10.154608154816106
2015	12.059376106337098
2016	11.72570090891674
2017	10.177655039351247
2018	10.139533107022944
2019	8.96518101437243
2020	9.310151098074716
2021	10.885772106326923
2022	8.57297627041519
2023	7.405367993178159