Year	% of GDP
1981	4.388327721661055
1982	4.0747869122903495
1983	4.024977234291661
1984	4.052199485357186
1985	4.201834862385321
1986	4.464583830193179
1987	4.463377115134303
1988	4.526254375729288
1989	5.1175
1990	23.056300268096514
1991	22.521893007849723
1992	22.412923770981223
1993	19.662354385649685
1994	17.787142835645344
1995	17.402044516858066
1996	16.107730270379445
1997	17.03601162348383
1998	17.736038716267156
1999	17.056618970221166
2000	17.962709479418994
2001	16.63341607647579
2002	16.48910006140348
2003	17.774763752777233
2004	17.42126615780158
2005	17.468056929135585
2006	17.947057234365708
2007	17.539525726518594
2008	16.785344992707024
2009	15.272830152286407
2010	16.24268071569502
2011	17.216303110013175
2012	17.157213939797707
2013	17.761460563274806
2014	17.939831634065726
2015	18.918308998915997
2016	17.112125197642282
2017	15.586663859466848
2018	14.38335467718031
2019	14.560461201814709
2020	14.184286270699548
2021	14.963840409698243
2022	16.02041152737933