Year	% of GDP
1977	96.5527841861338
1978	108.265792557251
1979	112.789022260248
1980	117.124536010582
1981	106.939045208616
1982	110.903521883223
1983	113.06329444452
1984	116.464039837104
1985	117.589435691858
1986	121.396967154636
1987	116.700619760364
1988	129.92236335689
1989	129.028139707183
1990	117.5017264504
1991	105.25986861229
1992	107.807563758526
1993	98.6363938009738
1994	97.5426365149685
1995	98.3588227648367
1996	101.217601082968
1997	108.489114240042
1998	108.781593808561
1999	106.766089538408
2000	95.8673273728703
2001	89.6202336720133
2002	85.1149155554957
2003	85.9767910417357
2004	87.4973107842236
2005	89.2886219294384
2006	88.037534273034
2007	89.7566234808143
2008	92.1712629334662
2009	85.987850346819
2010	84.024983062943
2011	82.7356411171344
2012	85.2029516370306
2013	84.5060298446933
2014	95.7720370329503
2015	92.0870698834234
2016	95.8061447920355
2017	90.4653821145637