Year	% of GDP
1990	2.412121212121212
1991	4.693927522037218
1992	3.857242097950677
1993	2.3302279484638255
1994	2.4219071490030304
1995	1.911653253455556
1996	2.3269282271023033
2005	2.8773809523809524
2006	2.194050603676512
2010	3.2318366753573256
2011	3.519249638061722
2012	3.300510937097128
2013	2.5402652454245516
2014	2.8413023179671537
2015	3.1334965081791024