Year	% of GDP
1990	1.9748749884958738
1991	1.955904552190231
1992	3.362672913877733
1993	2.445602121028885
1994	2.155496844372342
1995	2.247725525421438
1996	2.799046385919434
1997	2.2442166204012017
1998	2.5437269946572783
1999	4.104259838006112
2000	4.62678171331564
2001	3.595417427669906
2002	3.2457664688735357
2003	4.254527575241883
2004	4.6061972705804175
2005	4.173882914739421
2006	2.7137784210437736
2007	2.866889617454418
2008	2.094828738411441
2009	2.1532226244290276
2010	1.9860942411735774
2011	1.7645030157585933
2012	1.9027690297710016
2013	2.0434981162233132
2014	2.303573570944511
2015	2.378548605578835
2016	2.7079487300860983