Year	% of GDP
1990	0.9886291850915983
1991	0.8196299772432146
1992	0.9392087487938244
1993	1.390685640362225
1994	1.4237496164467627
1995	1.5602216389617964
1996	1.6625103906899419
1997	1.8361242885748759
1998	1.086296065398158
1999	1.1763213068414744
2000	1.1035266644957513
2001	1.0603727174034574
2002	1.0606722545253098
2003	0.7643665396856176
2004	1.078927345231351
2005	0.9831032309225107
2006	1.3620300474562934
2007	1.472198102528267
2008	1.6233707011210334
2009	1.398182320906916
2010	1.510198340689557
2011	1.926825514252094
2012	1.9679865677906816
2013	2.222830373804806
2014	2.2527132065499678
2015	2.342703415896298
2016	1.958833896688832