Year	% of GDP
1990	10.387539633905362
1991	11.162091035774552
1992	12.280641147650911
1993	15.099555625285449
1994	14.863851771286512
1995	14.026297151416445
1996	13.040835054965145
1997	13.600299120054359
1998	13.756126687478517
1999	14.01113842615943
2000	14.177610253207426
2001	13.77750196085364
2002	14.056113634909465
2003	17.199701951355312
2004	16.734777769666508
2005	16.621657516102665
2006	17.201755160305186
2007	17.930072998700407
2008	18.971734152218062
2009	20.13602102797831
2010	21.241316426753677
2011	20.19640807428102
2012	21.18223460486703
2013	21.565282964359568
2014	22.332294370501444
2015	22.149080304016415
2016	21.25670130713878
2017	19.337123974458244
2018	17.702448387611078
2019	18.736299582670675
2020	17.478702194570197
2021	18.026908618474685
2022	17.974289398734527
