Year	% of GDP
1975	0.7189415142603826
1976	0.5589245334123182
1977	0.3361849355258827
1978	0.6246462498898274
1979	0.8790705528374496
1980	1.7964752795898056
1981	2.519161404939613
1982	0.6523469331002687
1983	0.873889322795324
1984	0.9238441960367024
1985	3.03267348971351
1986	5.98875972823694
1987	4.018725631709943
1988	3.544648104570828
1989	4.526224851014989
1990	3.5700297377661805
1991	1.8803419191776507
1992	2.093084593545935
1993	6.192102911272277
1994	10.857495275721723
1995	7.413630028519297
1996	7.813374526364443
1997	16.35684323069018
1998	38.26100024050449
1999	42.79471670842497
2000	86.29750935044218
2001	51.34047713620553
2002	45.14990160244145
2003	46.4288020839555
2004	49.830210278626716
2005	56.76261849091391
2006	62.01170648493962
2007	100.02076303524683
2008	57.47712974944778
2009	42.1294188368662
2010	31.171690649009243
2011	36.88906770958438
2012	37.49985043740152
2013	35.94856615365538
2014	95.08102946399146