Year	% of GDP
1991	56.5032519908333
1992	35.1260427142039
1993	13.8509085539339
1994	14.772399811801
1995	6.40571055480647
1996	12.6296382030005
1997	7.27626678368417
1998	14.4996962820842
1999	11.058700717163
2000	8.95248723928858
2001	9.76488823887701
2002	13.2840901186718
2003	19.9282606119068
2004	27.0873888289891
2005	26.645758634184
2006	19.9882727117096
2007	28.0752978053584
2008	31.4155529641603
2009	29.4399014051229
2010	25.7499270071984
2011	33.8379248774941
2012	25.6977344917148
2013	58.4907942680559
2014	66.4446744167985
2015	69.2814148026101
2016	76.0276363639856
2017	65.456235008733
2018	65.4043963753927