Year	% of GDP
1995	40.9688608265557
1996	37.6657059331244
1997	38.2907004551724
1998	41.3619365982878
1999	39.6449777181095
2000	39.9751096458228
2001	45.1096702658567
2002	53.2122909700926
2003	54.3774560246326
2004	56.8953565449236
2005	62.9417164922071
2006	68.6563273688867
2007	70.7239129391425
2008	73.8855734509991
2009	77.2825262250348
2010	90.4332274740333
2011	88.6776373783436
2012	97.7044746343283
2013	89.4546454626058
2014	89.3754906995059
2015	87.3182716719627
2016	84.4359740658204
2017	76.5284405543372
2018	75.2029729875302