Year	% of GDP
1981	7.55101199749643
1982	7.76425089632444
1983	8.11146842609287
1984	8.31126594756355
1985	8.27315759879756
1986	8.85868139214349
1987	9.00962439411792
1988	9.63239393253366
1989	9.84465326212726
1990	9.37470013731275
1991	9.00320804703949
1992	11.1371058420381
1993	10.7637907401301
1994	9.60397284816305
1995	9.25957182151951
1996	9.42390957500511
1997	8.62734194400369
1998	8.65952554746088
1999	8.11368789358988
2000	8.21402488268403
2001	8.01968545304768
2002	8.2605109178231
2003	7.88899144879542
2004	8.80554611858975
2005	8.19861841965271
2006	8.9502916854093
2007	10.7105885037013
2008	10.6970992219574
2009	10.7755074631966
2010	10.9599913379119
2011	10.3582031604562
2012	10.5810481827772
2013	10.3407346921046
2014	9.79644766822085
2015	10.11009417374
2016	9.63947140838554
2017	9.03915291892933