Year	% of GDP
1987	28.000000000000004
1988	29.629629629629626
1989	25
1990	26.666666666666668
1991	33.89830508474576
1993	56.4870259481038
1997	8.120472547254726
1998	4.48219721329046
1999	8.783649962602842
2000	45.00506796860042
2001	32.99685203161836
2002	41.37697170645446
2003	29.15572258227423
2004	23.95076808452994
2005	38.76379542018924
2006	56.02541911996045
2007	54.07317814814815
2008	55.66896159288458
2009	78.3072284806721
2010	87.82679453714924
2011	85.57503978875353
2012	78.98103045361113